Definition of: marginate

(mär′jə·nāt) v.t. ·nat·ed, ·nat·ing
To provide with a margin or margins.
—adjective Biol. Having a margin, especially one of a distinct character, appearance, or color: also mar′·gi·nat′ed. [<L marginatus, pp. of marginare <margo, -inis a margin]
—mar′gi·na′·tion noun