‖ n.; L. pl. Calcaria [ L., a spur, as worn on the heel, also the spur of a cock, fr. calx, calcis, the heel. ] 1. (Bot.) A hollow tube or spur at the base of a petal or corolla. [ 1913 Webster ]

2. (Zool.) A slender bony process from the ankle joint of bats, which helps to support the posterior part of the web, in flight. [ 1913 Webster ]

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. [ 1913 Webster ]

n. [ L. calcaria lime kiln, fr. calx, calcis, lime. See Calx. ] (Glass manuf.) A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit. Ure. [ 1913 Webster ]

{ } a. [ LL. calcaratus, fr. L. calcar. See 2d Calcar. ] [ 1913 Webster ]

1. (Bot.) Having a spur, as the flower of the toadflax and larkspur; spurred. Gray. [ 1913 Webster ]

2. (Zool.) Armed with a spur. [ 1913 Webster ]

a. consisting of, or containing, calcareous and argillaceous earths. [ 1913 Webster ]

a. Consisting of, or containing, lime and bitumen. Lyell. [ 1913 Webster ]

a.Consisting of, or containing, calcareous and siliceous earths. [ 1913 Webster ]

a. [ L. calcarius pertaining to lime. See Calx. ] Partaking of the nature of calcite or calcium carbonate; consisting of, or containing, calcium carbonate or carbonate of lime. [ 1913 Webster ]

Calcareous spar. Same as Calcite. [ 1913 Webster ]

n. Quality of being calcareous. [ 1913 Webster ]

a. [ L. calcarius of lime + -ferous. ] Lime-yielding; calciferous [ 1913 Webster ]

a. (Anat.) Pertaining to, or situated near, the calcar of the brain. [ 1913 Webster ]