synecdoche Look up synecdoche at Dictionary.com
1388, "part for whole or vice versa," from M.L. synodoche, from L.L. synecdoche, from Gk. synekdokhe, lit. "a receiving together or jointly," from synekdekhesthai "supply a thought or word, take with something else," from syn- "with" + ek "out" + dekhesthai "to receive," related to dokein "seem good" (see decent). Figure in which an attribute or adjunct is substituted for the thing meant ("head" for "cattle," etc.).