Source : Webster's Revised Unabridged Dictionary (1913)

Septicidal \Sep"ti*ci`dal\, a. [Septum + L. caedere to cut: cf.
   F. septicide.] (Bot.)
   Dividing the partitions; -- said of a method of dehiscence in
   which a pod splits through the partitions and is divided into
   its component carpels.