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n. [ Baryta + calcite. ] (Min.) A mineral of a white or gray color, occurring massive or crystallized. It is a compound of the carbonates of barium and calcium. [ 1913 Webster ]

a. [ Pref. bi- + calcarate. ] Having two spurs, as the wing or leg of a bird. [ 1913 Webster ]

a. (Anal.) Pertaining to the calcaneum; as, calcaneal arteries. [ 1913 Webster ]

‖pos>n.; pl. E. -neums, L. -nea. [ L. the heel, fr. calx, calcis, the heel. ] (Anal.) One of the bones of the tarsus which in man, forms the great bone of the heel; -- called also fibulare. [ 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 ]

‖ 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 ]

{ } 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 ]

n. A sweet wine from Portugal; -- so called from the district of Carcavelhos. [ Written also Calcavellos or Carcavelhos. ] [ 1913 Webster ]

a. [ L. calceatus, p. p. of calceare to shoe, fr. calceus shoe, fr. calx, calcis, heel. ] Fitted with, or wearing, shoes. Johnson. [ 1913 Webster ]

a. [ See Calceated. ] Wearing shoes; calceated; -- in distinction from discalced or barefooted; as the calced Carmelites. [ 1913 Webster ]

n. [ See Chalcedony. ] A foul vein, like chalcedony, in some precious stones. [ 1913 Webster ]

{ } a. See Chalcedonic. [ 1913 Webster ]

a. [ L. calceus shoe + -form. ] (Bot.) Shaped like a slipper, as one petal of the lady's-slipper; calceolate. [ 1913 Webster ]

‖n. [ NL., fr. L. calceolarius shoemaker, fr. calceolus, a dim. of calceus shoe. ] (Bot.) A genus of showy herbaceous or shrubby plants, brought from South America; slipperwort. It has a yellow or purple flower, often spotted or striped, the shape of which suggests its name. [ 1913 Webster ]

a. [ See Calceolaria. ] Slipper-shaped. See Calceiform. [ 1913 Webster ]

‖n. pl. See Calx. [ 1913 Webster ]

a. [ L. calx, calcis, lime: cf. F. calcique. ] (Chem.) Pertaining to, derived from, or containing, calcium or lime. [ 1913 Webster ]

n. One of the forms of vitamin D, a fat-soluble vitamin that prevents rickets. It is an unsaturated alcohol (C28H43OH) found in foods such as milk and fish liver oils. It is used as a dietary supplement in milk.
Syn. -- vitamin D, ergocalciferol, cholecarciferol, D. [ WordNet 1.5 +PJC ]

a. [ L. calx, calcis, lime + -ferous. ] Bearing, producing, or containing calcite, or carbonate of lime. [ 1913 Webster ]

Calciferous epoch (Geol.), an epoch in the American lower Silurian system, immediately succeeding the Cambrian period. The name alludes to the peculiar mixture of calcareous and siliceous characteristics in many of the beds. See the Diagram under Geology. [ 1913 Webster ]

a. Calciferous. Specifically: (Zool.) of or pertaining to the portion of the oviduct which forms the eggshell in birds and reptiles. Huxley. [ 1913 Webster ]

n. (Physiol.) The process of change into a stony or calcareous substance by the deposition of lime salt; -- normally, as in the formation of bone and of teeth; abnormally, as in calcareous degeneration of tissue. [ 1913 Webster ]

a. Consisting of, or containing, calcareous matter or lime salts; calcareous. [ 1913 Webster ]

a. [ L. calx, calcis, lime + -form. ] In the form of chalk or lime. [ 1913 Webster ]

v. t. [ imp. & p. p. Calcified p. pr. & vb. n. Calcifying. ] [ L. calx, calcis, lime + -fy. ] To make stony or calcareous by the deposit or secretion of salts of lime. [ 1913 Webster ]

v. i. To become changed into a stony or calcareous condition, in which lime is a principal ingredient, as in the formation of teeth. [ 1913 Webster ]

a. [ L. calx, calcis, lime + -genouse. ] (Chem.) Tending to form, or to become, a calx or earthlike substance on being oxidized or burnt; as magnesium, calcium. etc. [ 1913 Webster ]

a. [ L. calx, calcis, lime + -gerouse. ] Holding lime or other earthy salts; as, the calcigerous cells of the teeth. [ 1913 Webster ]

v. t. [ imp. & p. p. Calcimined p. pr. & vb. n. Calcimining. ] To wash or cover with calcimine; as, to calcimine walls. [ 1913 Webster ]

n. [ L. calx, calcis, lime. ] A white or colored wash for the ceiling or other plastering of a room, consisting of a mixture of clear glue, Paris white or zinc white, and water. [ Also spelt kalsomine. ] [ 1913 Webster ]

n. One who calcimines. [ 1913 Webster ]

a. That may be calcined; as, a calcinable fossil. [ 1913 Webster ]

v. i. To calcine. [ R. ] [ 1913 Webster ]

n. [ F. calcination. ] [ 1913 Webster ]

1. (Chem.) The act or process of disintegrating a substance, or rendering it friable by the action of heat, esp. by the expulsion of some volatile matter, as when carbonic and acid is expelled from carbonate of calcium in the burning of limestone in order to make lime. [ 1913 Webster ]

2. The act or process of reducing a metal to an oxide or metallic calx; oxidation. [ 1913 Webster ]

n. A vessel used in calcination. [ 1913 Webster ]

v. i. [ imp. & p. p. Calciden p. pr. & vb. n. Calcining. ] [ F. calciner, fr. L. calx, calcis, lime. See Calx. ] [ 1913 Webster ]

1. To reduce to a powder, or to a friable state, by the action of heat; to expel volatile matter from by means of heat, as carbonic acid from limestone, and thus (usually) to produce disintegration; as to, calcine bones. [ 1913 Webster ]

2. To oxidize, as a metal by the action of heat; to reduce to a metallic calx. [ 1913 Webster ]

v. i. To be converted into a powder or friable substance, or into a calx, by the action of heat. “Calcining without fusion” Newton. [ 1913 Webster ]

n. One who, or that which, calcines. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. calx, calcis, lime + spongia a sponge. ] (Zool.) An order of marine sponges, containing calcareous spicules. See Porifera. [ 1913 Webster ]

n. [ L. calx, calcis, lime. ] (Min.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar. [ 1913 Webster ]

☞ Argentine is a pearly lamellar variety; aphrite is foliated or chalklike; dogtooth spar, a form in acute rhombohedral or scalenohedral crystals; calc-sinter and calc-tufa are lose or porous varieties formed in caverns or wet grounds from calcareous deposits; agaric mineral is a soft, white friable variety of similar origin; stalaclite and stalagmite are varieties formed from the drillings in caverns. Iceland spar is a transparent variety, exhibiting the strong double refraction of the species, and hence is called doubly refracting spar. [ 1913 Webster ]

a. [ L. calcitrans, p. pr. of calcitrare to kick, fr. calx, calcis , heel. ] Kicking. Hence: Stubborn; refractory. [ 1913 Webster ]

v. t. & i. [ L. calcitratus, p. p. of calcitrare. See Calcitrant. ] To kick. [ 1913 Webster ]