Con*cep"ta*cle (?), n. [L. conceptaculum, fr. concipere to receive. See Conceive.]
That in which anything is contained; a vessel; a receiver or receptacle.
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.
One of the cases containing the spores, etc., of flowerless plants, especially of algae.
© Webster 1913.