Definition of calcar

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Calcar (n.) A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit..

Lern More About Calcar

Foraminifera :: Foraminifera (n. pl.) An extensive order of rhizopods which generally have a chambered calcareous shell formed by several united zooids. Many of them have perforated walls, whence the name. Some species are covered with sand. See Rhizophoda..
Hippocampus :: Hippocampus (n.) A name applied to either of two ridges of white matter in each lateral ventricle of the brain. The larger is called hippocampus major or simply hippocampus. The smaller, hippocampus minor, is called also ergot and calcar..
Calcarate :: Calcarate (a.) Alt. of Calcarate.
Calcariferous :: Calcariferous (a.) Lime-yielding; calciferou.
Belemnite :: Belemnite (n.) A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family. The belemnites are found in rocks of the Jurassic and Cretaceous ages..
Mollusca :: Mollusca (n. pl.) One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or m
Conglomerate :: Conglomerate (n.) A rock, composed or rounded fragments of stone cemented together by another mineral substance, either calcareous, siliceous, or argillaceous; pudding stone; -- opposed to agglomerate. See Breccia..
Virgularian :: Virgularian (n.) Any one of numerous species of long, slender Alcyonaria belonging to Virgularia and allied genera of the family Virgularidae. These corals are allied to the sea-pens, but have a long rodlike rhachis inclosing a slender, round or square, calcareous axis. The polyps are arranged in transverse rows or clusters along each side of the rhachis..
Corneocalcareous :: Corneocalcareous (a.) Horny on one side and calcareous on the other.
Corneocalcareous :: Corneocalcareous (a.) Formed of a mixture of horny and calcareous materials, as some shells and corals..
Turbo :: Turbo (n.) Any one of numerous marine gastropods of the genus Turbo or family Turbinidae, usually having a turbinate shell, pearly on the inside, and a calcareous operculum..
Calcareo-bituminous :: Calcareo-bituminous (a.) Consisting of, or containing, lime and bitumen..
Decalcification :: Decalcification (n.) The removal of calcareous matter.
Ossicle :: Ossicle (n.) One of numerous small calcareous structures forming the skeleton of certain echinoderms, as the starfishes..
Calcar :: Calcar (n.) A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit..
Style :: Stylaster (n.) Any one of numerous species of delicate, usually pink, calcareous hydroid corals of the genus Stylaster..
Spicule :: Spicule (n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria..
Argillo-calcareous :: Argillo-calcareous (a.) Consisting of, or containing, clay and calcareous earth..
Sclerite :: Sclerite (n.) A hard chitinous or calcareous process or corpuscle, especially a spicule of the Alcyonaria..
Echinoidea :: Echinoidea (n. pl.) The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid..
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