laciniateEnglishOxford Dictionary of Englishlaciniate /ləˈsɪniət / (laciniated /ləˈsɪnɪəeɪtɪd/) ▸ adjective Botany Zoology divided into deep narrow irregular segments. – DERIVATIVES laciniation /-ˈeɪʃ(ə)n/ noun– ORIGIN mid 18th century: from Latin lacinia ‘fringe, hem, flap of a garment’ + -ate2.