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Testicardines :: Testicardines (n. pl.) A division of brachiopods including those which have a calcareous shell furnished with a hinge and hinge teeth. Terebratula and Spirifer are examples.

Corneocalcareous :: Corneocalcareous (a.) Horny on one side and calcareous on the other.

Calcariferous :: Calcariferous (a.) Lime-yielding; calciferou.

Phlebolith :: Phlebolith (n.) A small calcareous concretion formed in a vein; a vein stone.

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..

Serpula :: Serpula (n.) Any one of numerous species of tubicolous annelids of the genus Serpula and allied genera of the family Serpulidae. They secrete a calcareous tube, which is usually irregularly contorted, but is sometimes spirally coiled. The worm has a wreath of plumelike and often bright-colored gills around its head, and usually an operculum to close the aperture of its tube when it retracts..

Spicule :: Spicule (n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria..

Calcar :: Calcar (n.) A hollow tube or spur at the base of a petal or corolla.

Calcareousness :: Calcareousness (n.) Quality of being calcareous.

Hepar :: Hepar (n.) Any substance resembling hepar proper, in appearance; specifically, in homeopathy, calcium sulphide, called also hepar sulphuris calcareum (/)..

Sclerobase :: Sclerobase (n.) The calcareous or hornlike coral forming the central stem or axis of most compound alcyonarians; -- called also foot secretion. See Illust. under Gorgoniacea, and Coenenchyma..

Lithophyte :: Lithophyte (n.) A hard, or stony, plantlike organism, as the gorgonians, corals, and corallines, esp. those gorgonians having a calcareous axis. All the lithophytes except the corallines are animals..

Cockup :: Cockup (n.) A large, highly esteemed, edible fish of India (Lates calcarifer); -- also called begti..

Calcarated :: Calcarated (a.) Armed with a spur.

Petrify :: Petrify (v. i.) To become stone, or of a stony hardness, as organic matter by calcareous deposits..

Syconium :: Sycones (n. pl.) A division of calcareous sponges.

Shell :: Shell (n.) The hard calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates. In some mollusks, as the cuttlefishes, it is internal, or concealed by the mantle. Also, the hard covering of some vertebrates, as the armadillo, the tortoise, and the like..

Synaptase :: Synapta (n.) A genus of slender, transparent holothurians which have delicate calcareous anchors attached to the dermal plates. See Illustration in Appendix..

Calcification :: Calcification (n.) 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..

Lady :: Lady (n.) The triturating apparatus in the stomach of a lobster; -- so called from a fancied resemblance to a seated female figure. It consists of calcareous plates.

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