METONYMIC
metonymic, metonymical
(adjective) using the name of one thing for that of another with which it is closely associated; “to say ‘he spent the evening reading Shakespeare’ is metonymic because it substitutes the author himself for the author’s works”
Source: WordNet® 3.1
Etymology
Adjective
metonymic (comparative more metonymic, superlative most metonymic)
Of, or relating to, a word or phrase that names an object from a single characteristic of it or of a closely related object
Synonym: metonymical
Noun
metonymic (plural metonymics)
a metonym
Source: Wiktionary
Met`o*nym"ic, Met`o*nym"ic*al, a. Etym: [See Metonymy.]
Definition: Used by way of metonymy.
– Met`o*nym"ic*al*ly, adv.
Source: Webster’s Unabridged Dictionary 1913 Edition