Defn: See Collaborator.

COLLABORATION
Col*lab`o*ra"tion, n.

Defn: The act ofworking together; united labor.

COLLABORATOR Col*lab"o*ra`tor, n. Etym: [L. collaborare to labor together; col- + laborare to labor: cf. F. collaborateur.]

Defn: An associate in labor, especially in literary or scientific labor.

COLLAGEN
Col"la*gen, n. Etym: [Gr. -gen.] (Physiol. Chem.)

Defn: The chemical basis of ordinary connective tissue, as of tendons or sinews and of bone. On being boiled in water it becomes gelatin or glue.

COLLAGENOUS
Col*lag"e*nous, a. (Physiol.)

Defn: Containing or resembling collagen.

COLLAPSE
Col*lapse", v. i. [imp. & p. p. Collapsed; p. pr. & vb. n.
Collapsing] Etym: [L. collapsus, p. p. of collabi to collapse; col- +
labi to fall, slide. See Lapse.]