1. An arch or vault.

2. A chamber of a multilocular shell. Glanvill.

CONCATENATE
Con*cat"e*nate, v. t. [imp. & p. p. Concatenated; p. pr. & vb. n.
Concatenating.] Etym: [L. concatenatus, p. p. of concatenare to
concatenate. See Catenate.]

Defn: To link together; to unite in a series or chain, as things depending on one another. This all things friendly will concatenate. Dr. H. More

CONCATENATION
Con*cat`e*na"tion, n. Etym: [L. concatenatio.]

Defn: A series of links united; a series or order of things depending on each other, as if linked together; a chain, a succession. The stoics affirmed a fatal, unchangeable concatenation of causes, reaching even to the illicit acts of man's will. South. A concatenation of explosions. W. Irving.

CONCAUSE
Con*cause", n.

Defn: A joint cause. Fotherby.

CONCAVATION
Con`ca*va"tion, n.

Defn: The act of making concave.