subulate Syllabification: (su·bu·late)Pronunciation: /ˈsəbyəlit, -ˌlāt/Definition of subulate adjective Botany & Zoology (of a part) slender and tapering to a point; awl-shaped. Origin: mid 18th century: from Latin subula 'awl' + -ate2subulate in other Oxford dictionaries Definition of subulate in the British & World English dictionary