selkie Syllabification: (sel·kie)Pronunciation: /ˈselkē/ (also selky or silkie /ˈsil-/)Definition of selkie noun (plural selkies) Scottish a mythical creature that resembles a seal in the water but assumes human form on land. Origin:from selch, variant of seal2, + -ieselkie in other Oxford dictionaries Definition of selkie in the British & World English dictionary