Source : Webster's Revised Unabridged Dictionary (1913)

Cymule \Cy"mule\ (s?"m?l), n. [Cf. L. cymula a tender sprout,
   dim. of cyna. See {Cyme}.] (Bot.)
   A small cyme, or one of very few flowers.

Source : WordNet®

cymule
     n : a small cyme, generally with few flowers