Category:Calcar

Cal"car, n. Etym: [L. calcaria lime kiln, fr. calx, calcis, lime. See Calx.] (Glass manuf.)

Defn: A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit. Ure.

Calcar Cal"car, n.; L. pl. Calcaria. Etym: [L., a pur, as worn on the heel, also the spur of a cock, fr. calx, calcis, the heel.]

1. (Bot.)

Defn: A hollow tube or spur at the base of a petal or corolla.

2. (Zoöl.)

Defn: A slender bony process from the ankle joint of bats, which helps to support the posterior part of the web, in flight.

3. (Anat.) (a) A spur, or spurlike prominence. (b) A curved ridge in the floor of the leteral ventricle of the brain; the calcar avis, hippocampus minor, or ergot.