Definition of emarginate:
(adj) :
(zoology, anatomy) Having a margin that has concave edges as though with parts removed or notched.
(adj) :
(botany, of leaves) With the outline of the margin more or less concave in places, usually at the apex.
(adj) :
(botany, mycology) Having roughly the same height or width for most of its length, becoming much shallower or narrower before reaching the attachment point.
(v) :
(transitive) To take away the margin of.
(v) :
(intransitive) To lose the margin.
(adj) :
(mineralogy) Of a crystal: having edges or corners of the primitive form beveled, crossed by a face.