\Con*cep"ta*cle\, n. [L. conceptaculum, fr.
concipere to receive. See {Conceive}.]
1. That in which anything is contained; a vessel; a receiver
   or receptacle. [Obs.] --Woodward.

2. (Bot.)
   (a) A pericarp, opening longitudinally on one side and
       having the seeds loose in it; a follicle; a double
       follicle or pair of follicles.
   (b) One of the cases containing the spores, etc., of
       flowerless plants, especially of algae.