sylvatic Syllabification: (syl·vat·ic)Pronunciation: /silˈvatik/Definition of sylvatic adjective Veterinary Medicine relating to or denoting certain diseases when contracted by wild animals, and the pathogens causing them:an epidemic of sylvatic plague among prairie dogsOrigin: 1930s: from Latin silvaticus, from silva 'wood'sylvatic in other Oxford dictionaries Definition of sylvatic in the British & World English dictionary