Concamerate

Con*cam"er*ate (kŏn*kăm"ẽr*āt), v. t. [L. concameratus, p. p. of concamerare to arch over. See Camber.] 1. To arch over; to vault.

Of the upper beak an inch and a half consisteth of one concamerated bone.
Grew.

2. To divide into chambers or cells. Woodward.