EnglishWikipedia has an article on:

noun adjunct

Wikipedia

nounadjunct (pluralnouns adjunctornoun adjuncts)

1. (grammar) Anoun that modifies another noun (thus functioningadjectivally) and that is optional; it may be a singleword or acompound noun ornoun phrase.

   Synonyms:attributive noun,noun modifier,nounpremodifier,qualifyingnoun,appositenoun

   • 1993, Kenneth G. Wilson,The Columbia Guide to Standard American English,page300:

     Noun adjuncts form the first elements of hundreds of compound nouns in American English (bird house,ball field,name brand, andfieldhouse);[…]

• English lemmas
• English nouns
• English countable nouns
• English multiword terms
• en:Grammar
• English terms with quotations
• English terms where the adjective follows the noun

• Pages with entries
• Pages with 1 entry