to make imperfect
something having a minor flaw
a tense of verbs used in describing a past action that is incomplete or continuous
not perfect
belonging to a tense of verbs used in describing a past action that is incomplete or continuous
known or expected to be polyphyletic, as of a form taxon.
unisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.