Cleis`to*gam"ic (?), Cleis*tog"a*mous (?), a. [Gr. closed (fr. to shut) + marriage.] Bot.
Having, beside the usual flowers, other minute, closed flowers, without petals or with minute petals; -- said of certain species of plants which possess flowers of two or more kinds, the closed ones being so constituted as to insure self-fertilization.
Darwin.
© Webster 1913.