hendiadys

from WordNet (r) 3.0 (2006)

hendiadys
    n 1: use of two conjoined nouns instead of a noun and modifier

from The Collaborative International Dictionary of English v.0.48

Hendiadys \Hen*di"a*dys\, n. [NL., fr. Gr. ? ? ? one by two.]
   (Gram.)
   A figure in which the idea is expressed by two nouns
   connected by and, instead of by a noun and limiting
   adjective; as, we drink from cups and gold, for golden cups.
   [1913 Webster]