onomatopoeic Syllabification: (on·o·mat·o·poe·ic)Pronunciation: /ˌänəˌmatəˈpē-ik, -ˌmätə-/Definition of onomatopoeic adjective using or relating to onomatopoeia:onomatopoeic words like ‘bang’ and ‘coo’Derivatives onomatopoeicallyPronunciation: /-ˈpē-ik(ə)lē/ adverb onomatopoeticPronunciation: /-pōˈetik/ adjective onomatopoeic in other Oxford dictionaries Definition of onomatopoeic in the British & World English dictionary