Source : Webster's Revised Unabridged Dictionary (1913)

Cleistogamic \Cleis`to*gam"ic\, Cleistogamous
\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.

Source : WordNet®

cleistogamous
     adj : exhibiting or relating to cleistogamy [syn: {cleistogamic}]