synecdoche
Concise Oxford English Dictionary © 2008 Oxford University Press:
synecdoche /sɪˈnɛkdəki/
▶noun a figure of speech in which a part is made to represent the whole or vice versa, as in England lost by six wickets (meaning ‘the English cricket team’).
– derivatives
synecdochic adjective,
synecdochical adjective,
synecdochically adverb.
synecdochic adjective,
synecdochical adjective,
synecdochically adverb.
– origin ME: via L. from Gk sunekdokhē, from sun- ‘together’ + ekdekhesthai ‘take up’.
'synecdoche' also found in these Oxford entries:

