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leaf

From Wiktionary, the free dictionary
See also:Leaf

English

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EnglishWikipedia has an article on:
Wikipedia
A leaf
Leaves (plural form)

Etymology

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FromMiddle Englishleef, fromOld Englishlēaf, fromProto-West Germanic*laub, fromProto-Germanic*laubą(“leaf”), fromProto-Indo-European*lowbʰ-o-m, from*lewbʰ-(“to cut off”).[1]

Cognates

Cognate withScotsleaf(“leaf”),Yolalaafe(“leaf”),North Frisianluuf(“leaf”),Saterland FrisianLoof(“leaf”),West Frisianleaf(“leaf”),Cimbrianloap(“leaf”),Dutchloof(“foliage”),GermanLaub(“leaves”),German Low GermanLoov(“leaf”),LuxembourgishLaf(“foliage, leaves”),Mòchenolap(“leaf”),Vilamovianłaub,łaup,łojp(“leaf”),Danishløv(“leaf”),Faroeseleyv(“leaf”),Icelandiclauf(“leaf”),Norwegian Bokmållauv,løv(“leaf”),Norwegian Nynorsklauv(“leaf”),Swedishlöf,löv(“leaf”),Gothic𐌻𐌰𐌿𐍆𐍃(laufs,“leaf”); alsoIrishluibh(“herb, plant”),Latinliber(“bast; book”),Albanianlabë(“rind”),Lithuanianlúobas(“bark; bast”),Polishłub(“bark”),Russianлуб(lub,“bast”).

(Internet slang: Canadian): In reference to themaple leaf as national symbol.

Pronunciation

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Noun

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leaf (countable anduncountable,pluralleaves)

  1. The usuallygreen and flatorgan that represents the mostprominent feature of most vegetativeplants.
    • 2013 May-June,William E. Conner, “An Acoustic Arms Race”, inAmerican Scientist, volume101, number 3, pages206–7:
      Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from theleaves and stems around them.
  2. (botany) Afoliage leaf or any of the many and often considerably differentstructures it canspecialise into.
  3. Anything resembling the leaf of a plant.
  5. (publishing, bookbinding, advertising) A sheet of a book, magazine, etc. (consisting of twopages, one on each face of the leaf).
    Hyponyms:flyleaf,looseleaf
    • 1900,Profitable Advertising, volume10, number 2, page893:
      Heretofore advertisers have had to buy and pay for aleaf — two pages.
  6. A sheet of any substance beaten or rolled until very thin.
    Synonyms:folio,folium
    goldleaf
  7. One of the individual flat or curved strips ofmetal, typically made ofspring steel, that make up aleaf spring.
    • 1931,Ion L. Idriess,Lasseter's Last Ride, Sydney: Angus and Robertson, page52:
      Lumbering down a precipitous "slideway," the Thornycroft broke two mainleaves in the back spring[.]
  8. (in theplural)Tea leaves.
  9. A flat section used to extend the size of a table.
  11. (pluralleaves orleafs) A moveablepanel, e.g. of abridge ordoor, originally one thathinged but now also applied to other forms of movement.
    Hyponym:doorleaf
    Meronym:stile
    The train car has one single-leaf and two double-leaf doors per side.
    • 1914,Department of Bridges, City of New York, Report, page90:
      The bridge shear locks were repaired and the long ends of the shear locks shortened about two inches to eliminate butting of the bridgeleafs against each other.
    • 1992 July 21, William R. Kennedy, John M. Kennedy,Power mine door system‎[1],US Patent5,222,838:
      It will be noted that the pivotal mounting of the cylinders is such that the cylinders have their greatest leverage (i.e., exert the greatest door-opening force) when the doorleafs 24, 28 are closed because the cylinders are generally perpendicular to the closedleafs. This is desirable because the load on theleafs is the greatest when they are closed due to air pressure. As theleafs begin to open and this air pressure decreases, the opening force exerted by the cylinders on the doorleafs decreases and the opening speed of theleafs increases.
    • 1993,Department of Transportation and Related Agencies Appropriations for 1994: Hearings Before a Subcommittee of the Committee on Appropriations, House of Representatives, One Hundred Third Congress, First Session, Washington, D.C.:U.S. Government Printing Office,→ISBN, page136:
      THE NTSB RECOMMENDS THAT THE U.S. COAST GUARD: REQUIRE OWNERS/OPERATORS OF BASCULE BRIDGES TO INSTALL CAUTION LIGHTS AND DAYLIGHT MARKINGS AT ELEVATION POINTS ON BRIDGELEAFS WHERE THEY PROTRUDE OVER NAVIGABLE CHANNELS TO IDEN TIFY[sic] TO MARINERS THE POINT AT WHICH FULL SKYWARD CHANNEL CLEARANCE IS NOT AVAILABLE TO TRANSITING VESSELS: THE LIGHTS SHOULD ACTIVATE WHEN THE BRIDGELEAFS ARE IN THE NORMAL FULLY OPEN POSITION.[…]THE NTSB RECOMMENDS THAT THE U.S. COAST GUARD: REQUIRE THAT BRIDGE OWNERS/OPERATORS PROVIDE IN BASCULE BRIDGE PERMIT APPLICATIONS THE ANGLE OF THE BRIDGELEAF(S). THE MAXIMUM VERTICAL CLEARANCE AT THE FENDERS AND AT THE BRIDGELEAF ENDS, AND THE EXTENT OF HORIZONTAL CHANNEL CLEARANCE OVER WHICH FULL SKYWARD CLEARANCE IS AVAILABLE WHEN THE BRIDGELEAFS ARE IN THE FULLY OPEN POSITION.
    • 1993,Realty and Building, page20:
      The four separate segments of the movable bridge span, known as bridgeleafs, were alternately rehabilitated while maintaining upper-level roadway and pedestrian traffic on one-half of the bridge and waterway traffic on one-half of the river channel.
    • 1993,The Americana Annual: An Encyclopedia of Current Events,Grolier,→ISBN,→ISSN,→LCCN, page224:
      The hydraulic system lifts and rotates two 413-ft (126-m) bridgeleafs, each weighing 7,500 tons, in just four minutes.
    • 1996, Gerard R. Wolfe,Chicago in and Around the Loop: Walking Tours of Architecture and History,McGraw-Hill,→ISBN, page150:
      Note the Art Deco-style sculptures on the wall of the bridge house showing a ship passing under the raised bridgeleafs.
    • 2010, James Newport-Chiakulas,Bridges to Justice: Love, Murder, & Politics in Chicago,iUniverse,→ISBN, page55:
      Like I’ve said, John, you’ve got to get the two bridgeleafs to come down very slowly to a complete stop in order to trigger the tongue locks. This is what holds the twoleafs of the bridge firmly in place. Otherwise, the bridgeleafs will start bouncing, and once they start bouncing, you’ll never stop them from goin’ straight up in the air.
  12. (computing, mathematics) In atree, anode that has nodescendants.
    • 2011, John Mongan, Noah Kindler, Eric Giguère,Programming Interviews Exposed:
      The algorithm pops the stack to obtain a new current node when there are no more children (when it reaches aleaf).
  13. Thelayer offat supporting thekidneys of apig,leaf fat.
  14. One of theteeth of apinion, especially when small.
  15. (slang, uncountable)Cannabis.
  16. (4chanslang, Internetslang, humorous, sometimes pejorative, pluralleafs) ACanadian person.
  17. (programming, x86) A particular value of the EAX register when aprogram runs theCPUID instruction; each leaf represents a different category of information returned about theprocessor.
    • 2024 May 7, Perry Yuan, “[PATCH 00/11] AMD Pstate Driver Fixes and Improvements”, inKernel Lore‎[2]:
      X86_FEATURE_HETERO_CORE_TOPOLOGY is used to identify whether the processor support heterogeneous core type by reading CPUIDleaf Fn_0x80000026_EAX and bit 30. if the bit is set as one, then amd_pstate driver will check EBX 30:28 bits to get the core type.

Synonyms

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Derived terms

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Descendants

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Translations

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part of a plant
anything resembling the leaf of a plant
sheet of any substance beaten or rolled until very thin
sheet of a book
tea leaves—seetea leaf
flat section used to extend a table
moveable panel of a bridge or door
computing, mathematics: tree node without descendants
layer supporting the kidney of a pig—seeleaf fat

Verb

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leaf (third-person singular simple presentleafs,present participleleafing,simple past and past participleleafed)

  1. (intransitive) To produce leaves; put forthfoliage.
    • 1828,Thomas Keightley,The Fairy Mythology, volume I, London: William Harrison Ainsworth, page164:
      Then flowered the mead, thenleafed all
      'Twas caused by the runic lay.
  2. (transitive) To divide (a vegetable) into separate leaves.
    The lettuce in our burgers is 100% hand-leafed.
  3. (informal, transitive, uncommon) Toplay aprank on someone bythrowing alargeclump orcollection of leaves at them.

Synonyms

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Derived terms

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Translations

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to produce leaves

See also

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References

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  1. ^De Vaan, Michiel (2008),Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill,→ISBN,page337

Further reading

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Anagrams

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Old English

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Pronunciation

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Etymology 1

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    FromProto-West Germanic*laub, fromProto-Germanic*laubą. Cognate withOld Saxonlōf,Old High Germanloub,Old Norselauf,Gothic𐌻𐌰𐌿𐍆𐍃(laufs).

    Noun

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    lēaf n

    1. leaf
    2. page
    Declension
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    Stronga-stem:

    singularplural
    nominativelēaflēaf
    accusativelēaflēaf
    genitivelēafeslēafa
    dativelēafelēafum
    Descendants
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    Etymology 2

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      FromProto-West Germanic*laubu. Cognate withGermanLaube.

      Alternative forms

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      Noun

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      lēaf f

      1. permission
      Declension
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      Strongō-stem:

      singularplural
      nominativelēaflēafa,lēafe
      accusativelēafelēafa,lēafe
      genitivelēafelēafa
      dativelēafelēafum
      Descendants
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      Scots

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      Etymology

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      FromMiddle Englishleef,lefe,lef, fromOld Englishlēaf.

      Noun

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      leaf (pluralleafs)

      1. alternative form ofleif(“leaf”)

      West Frisian

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      Pronunciation

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      Etymology 1

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      FromOld Frisianlāf.

      Noun

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      leaf n (pluralleaven,diminutiveleafke)

      1. leaf, especially a long leaf, like ablade ofgrass
      Further reading
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      • “leaf (IV)”, inWurdboek fan de Fryske taal (in Dutch),2011

      Etymology 2

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      FromOld Frisianliāf.

      Adjective

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      leaf

      1. friendly,kind,cordial
      Inflection
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      Inflection ofleaf
      uninflectedleaf
      inflectedleave
      comparativeleaver
      positivecomparativesuperlative
      predicative/adverbialleafleaveritleafst
      itleafste
      indefinitec. sing.leaveleavereleafste
      n. sing.leafleaverleafste
      pluralleaveleavereleafste
      definiteleaveleavereleafste
      partitiveleafsleavers—
      Derived terms
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      Further reading
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      • “leaf (I)”, inWurdboek fan de Fryske taal (in Dutch),2011
      Retrieved from "https://en.wiktionary.org/w/index.php?title=leaf&oldid=89601435"
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