Webster's Dictionary, 1913

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Calc-sinter noun [ German kalk (L. calx , calcis ) lime + English sinter .] See under Calcite .

Calc-spar noun [ German kalk (L. calx ) lime English spar .] Same as Calcite .

Calc-tufa noun [ German kalk (l. calx ) lime + English tufa .] See under Calcite .

Calcareousness noun Quality of being calcareous.

Calcariferous adjective [ Latin calcarius of lime + ferous .] Lime-yielding; calciferous

Calcarine adjective (Anat.) Pertaining to, or situated near, the calcar of the brain.

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

Calceated adjective [ Latin calceatus , past participle of pelceare to ahoe, from catceus shoe, from calx , calcic , heel .] Fitted with, or wearing, shoes. Johnson.

Calced adjective [ See Calceated .] Wearing shoes; calceated; -- in distintion from discalced or barefooted ; as the calced Carmelites.

Calcedon noun [ See Chalcedony .] A foul vein, like chalcedony, in some precious stones.

Calcedonic, Calcedonian adjective See Chalcedonic .

Calceiform (kăl"se*ĭ*fôrm`) adjective [ Latin calceus shoe + -form .] (Botany) Shaped like a slipper, as one petal of the lady's-slipper; calceolate.

calceolaria (kăl`se*o*lā"rĭ*ȧ) noun [ New Latin , from Latin calceolarius shoemaker, from calceolus , a dim. of calceus shoe.] (Botany) 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.

Calceolate adjective [ See Calceolaria .] Slipper-ahaped. See Calceiform .

Calces noun plural See Calx .

Calcic adjective [ Latin calx , calcis , lime: confer French calcique .] (Chemistry) Pertaining to, derived from, or containing, calcium or lime.

Calciferous adjective [ Latin calx , calcis , lime + -ferous .] Bearing, producing, or containing calcite, or carbonate of lime.

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 .

Calcific adjective Calciferous. Specifically: (Zoology) of or pertaining to the portion of the oviduct which forms the eggshell in birds and reptiles. Huxley.

Calcification (kăl`sĭ*fĭ*kā"shŭn) noun (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.

Calcified (kăl"sĭ*fīd) adjective Consisting of, or containing, calcareous matter or lime salts; calcareous.

Calciform (kăl"sĭ*fôrm) adjective [ Latin calx , calcis , lime + - form .] In the form of chalk or lime.

Calcify (kăl"sĭ*fī) transitive verb [ imperfect & past participle Calcified (- fīd); present participle & verbal noun Calcifying .] [ Latin calx , calcis , lime + -fy .] To make stony or calcareous by the deposit or secretion of salts of lime.

Calcify intransitive verb To become changed into a stony or calcareous condition, in which lime is a principal ingredient, as in the formation of teeth.

Calcigenous adjective [ Latin calx , calcis , lime + -genouse .] (Chemistry) Tending to form, or to become, a calx or earthlike substance on being oxidized or burnt; as magnesium, calcium. etc.

Calcigerous adjective [ Latin calx , calcis , lime + -gerouse .] Holding lime or other earthy salts; as, the calcigerous cells of the teeth.

Calcimine noun [ Latin 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 .]

Calcimine transitive verb [ imperfect &past participle Calcimined ; present participle & verbal noun Calcimining .] To wash or cover with calcimine; as, to calcimine walls.

Calciminer noun One who calcimines.

Calcinable adjective That may be calcined; as, a calcinable fossil.

Calcinate intransitive verb To calcine. [ R.]

Calcination (kăl`sĭ*nā"shŭn) noun [ French calcination .]


1. (Chemistry) 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.

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

Calcinatory noun A vessel used in calcination.

Calcine intransitive verb [ imperfect & past participle Calciden ; present participle & verbal noun Calcining .] [ French calciner , from Latin calx , calcis , lime. See Calx .]


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.

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

Calcine intransitive verb To be converted into a powder or friable substance, or into a calx, by the action of heat. " Calcining without fusion" Newton.

Calciner noun One who, or that which, calcines.

Calcispongiæ noun plural [ New Latin , from Latin calx , calcis , lime + spongia a sponge.] (Zoology) An order of marine sponges, containing calcareous spicules. See Porifera .

Calcite (kăl"sīt) noun [ Latin 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 .

» 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 .

Calcitrant adjective [ Latin calcitrans , present participle of calcitrare to kick, from calx , calcis , heel.] Kicking. Hence: Stubborn; refractory.

Calcitrate intransitive verb & i. [ Latin calcitratus , past participle of calcitrare . See Calcitrant .] To kick.

Calcitration (-trā"shŭn) noun Act of kicking.

Calcium (kăl"sĭ*ŭm) noun [ New Latin , from Latin calx , calcis , lime; cf French calcium . See Calx .] (Chemistry) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca.

» Calcium is widely and abundantly disseminated, as in its compounds calcium carbonate or limestone, calcium sulphate or gypsum, calcium fluoride or fluor spar, calcium phosphate or apatite.

Calcium light , an intense light produced by the incandescence of a stick or ball of lime in the flame of a combination of oxygen and hydrogen gases, or of oxygen and coal gas; -- called also Drummond light .

Calcivorous adjective [ Latin calx lime + vorare to devour.] Eroding, or eating into, limestone.

Calcographer noun One who practices calcography.

Calcographic, Calcographical adjective Relating to, or in the style of, calcography.

Calcography noun [ Latin calx , calcis , lime, chalk + -graphy .] The art of drawing with chalk.

Calculable adjective [ Confer French calculable .] That may be calculated or ascertained by calculation.

Calculary adjective [ Latin calculus a pebble, a calculus; cf calcularius pertaining to calculation.] (Medicine) Of or pertaining to calculi.

Calculary noun A congeries of little stony knots found in the pulp of the pear and other fruits.

Calculate intransitive verb [ imperfect & past participle Calculater ; present participle & verbal noun Calculating .] [ L, calculatus , past participle of calculate , from calculus a pebble, a stone used in reckoning; hence, a reckoning, from calx , calcis , a stone used in gaming, limestone. See Calx .]
1. To ascertain or determine by mathematical processes, usually by the ordinary rules of arithmetic; to reckon up; to estimate; to compute.

A calencar exacity calculated than any othe.
North.

2. To ascertain or predict by mathematical or astrological computations the time, circumstances, or other conditions of; to forecast or compute the character or consequences of; as, to calculate or cast one's nativity.

A cunning man did calculate my birth.
Shak.

3. To adjust for purpose; to adapt by forethought or calculation; to fit or prepare by the adaptation of means to an end; as, to calculate a system of laws for the government and protection of a free people.

[ Religion] is . . . calculated for our benefit.
Abp. Tillotson.

4. To plan; to expect; to think. [ Local, U. S.]

Syn. -- To compute; reckon; count; estimate; rate. -- To Calculate , Compute . Reckon , Count . These words indicate the means by which we arrive at a given result in regard to quantity. We calculate with a view to obtain a certain point of knowledge; as, to calculate an eclipse. We compute by combining given numbers, in order to learn the grand result. We reckon and count in carrying out the details of a computation. These words are also used in a secondary and figurative sense. " Calculate is rather a conjection from what is, as to what may be; computation is a rational estimate of what has been, from what is; reckoning is a conclusive conviction, a pleasing assurance that a thing will happen; counting indicates an expectation. We calculate on a gain; we compute any loss sustained, or the amount of any mischief done; we reckon on a promised pleasure; we count the hours and minutes until the time of enjoyment arrives" Crabb.

Calculate intransitive verb To make a calculation; to forecast consequences; to estimate; to compute.

The strong passions, whether good or bad, never calculate .
F. W. Robertson.