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Tubulipore :: Tubulipore (n.) Any one of numerous species of Bryozoa belonging to Tubulipora and allied genera, having tubular calcareous calicles..

Calcar :: Calcar (n.) A spur, or spurlike prominence..

Argillo-calcareous :: Argillo-calcareous (a.) Consisting of, or containing, clay and calcareous earth..

Corneocalcareous :: Corneocalcareous (a.) Formed of a mixture of horny and calcareous materials, as some shells and corals..

Coccolith :: Coccolith (n.) One of a kind of minute, calcareous bodies, probably vegetable, often abundant in deep-sea mud..

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

Proostracum :: Proostracum (n.) The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone..

Calcarate :: Calcarate (a.) Alt. of Calcarate.

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

Palus :: Palus (n.) One of several upright slender calcareous processes which surround the central part of the calicle of certain corals.

Epiphragm :: Epiphragm (n.) A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation..

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..

Calcispongiae :: Calcispongiae (n. pl.) An order of marine sponges, containing calcareous spicules. See Porifera..

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..

Calcareo-siliceous :: Calcareo-siliceous (a.) Consisting of, or containing calcareous and siliceous earths..

Decalcification :: Decalcification (n.) The removal of calcareous matter.

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..

Calcar :: Calcar (n.) A slender bony process from the ankle joint of bats, which helps to support the posterior part of the web, in flight..

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

Rhabdolith :: Rhabdolith (n.) A minute calcareous rodlike structure found both at the surface and the bottom of the ocean; -- supposed by some to be a calcareous alga.

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