produced by abortion; born prematurely; as, an abortive child.-made from the skin of a still-born animal; as, abortive vellum.-rendering fruitless or ineffectual.-coming to naught; failing in its effect; miscarrying; fruitless; unsuccessful; as, an abortive attempt.-imperfectly formed or developed; rudimentary; sterile; as, an abortive organ, stamen, ovule, etc.-causing abortion; as, abortive medicines.-cutting short; as, abortive treatment of typhoid fever.-that which is born or brought forth prematurely; an abortion.-a fruitless effort or issue.-a medicine to which is attributed the property of causing abortion.