Thesuffix-ose (/oʊz,oʊs/) is used inorganic chemistry to form the names ofsugars. This Latin suffix means "full of", "abounding in", "given to", or "like".^[1] Numerous systems exist to name specific sugars more descriptively. The suffix is also used more generally in English to form adjectives from nouns, with the sense "full of",^[2] as in "verbose": wordy, full of words.

Monosaccharides, the simplest sugars, may be named according to the number ofcarbon atoms in each molecule of the sugar:pentose is a five-carbon monosaccharide, andhexose is a six-carbon monosaccharide.Aldehyde monosaccharides may be calledaldoses;ketone monosaccharides may be calledketoses.

Larger sugars such asdisaccharides andpolysaccharides can be named to reflect their qualities.Lactose, a disaccharide found inmilk, gets its name from theLatin word for milk combined with the sugar suffix; its name means "milk sugar". The polysaccharide that makes up plantstarch is namedamylose, or "starch sugar"; seeamyl.

There are these theories about the origin of the-ose suffix in chemistry:-

1. Derived fromglucose, an important hexose whose name came from Greek γλυκύς = "sweet".
2. Derived fromsucrose, whose name came from Latinsucrum = "sugar" plus the common Latin adjective-forming suffix-ōsus; Latinsucrosus would mean "sugary".

• Chemistry suffixes
• English suffixes

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