episematic Syllabification: (ep·i·se·mat·ic)Pronunciation: /ˌepəsəˈmatik/Definition of episematic adjective Zoology (of coloration or markings) serving to help animals recognize other individuals of the same species. Origin: late 19th century: from epi- 'upon' + Greek sēma 'sign' + -aticepisematic in other Oxford dictionaries Definition of episematic in the British & World English dictionary