/ Dictionary / Index P presumptive: Meaning and Definition of Find definitions for: pre•sump•tive Pronunciation: (pri-zump'tiv), [key] — adj. affording ground for presumption: presumptive evidence. based on presumption: a presumptive title. regarded as such by presumption; based on inference. pertaining to the part of an embryo that, in the course of normal development, will predictably become a particular structure or region. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: presumptive (Thesaurus) presumption of survivorship presumptive heir Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language