- calcareous spicule
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известковая игла
English-Russian dictionary of geology. 2011.
calcareous spicule
Смотреть что такое "calcareous spicule" в других словарях:
Spicule — Spic ule, n. [L. spiculum a little point, a dart.] 1. A minute, slender granule, or point. [1913 Webster] 2. (Bot.) Same as {Spicula}. [1913 Webster] 3. (Zo[ o]l.) Any small calcareous or siliceous body found in the tissues of various… … The Collaborative International Dictionary of English
spicule — [spik′yo͞ol΄] n. [< ModL & L: ModL spicula < ML, head of a lance or arrow < L spiculum, dim. of spica, a point, ear, SPIKE2] 1. Astron. any of the short lived, bright, dense gas jets continuously spurting up through the chromosphere of… … English World dictionary
Calcareous sponge — Taxobox name = Calcareous sponges image caption = Calcispongiae from Ernst Haeckel s Kunstformen der Natur , 1904 regnum = Animalia phylum = Porifera classis = Calcarea classis horny = Bowerbank, 1864 subdivision ranks = Orders subdivision =… … Wikipedia
spicule — noun Etymology: New Latin spicula & Latin spiculum; New Latin spicula, alteration of Latin spiculum head of a spear or arrow, diminutive of spicum, spica ear of grain Date: 1785 1. a slender pointed usually hard body; especially one of the minute … New Collegiate Dictionary
spicule — /spik yoohl/, n. 1. a small or minute, slender, sharp pointed body or part; a small, needlelike crystal, process, or the like. 2. Zool. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine… … Universalium
spicule — spic•ule [[t]ˈspɪk yul[/t]] n. 1) a small, needlelike crystal, process, or the like 2) frm one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine and freshwater invertebrates • Etymology:… … From formal English to slang
spicule — /ˈspɪkjul/ (say spikyoohl), /ˈspaɪkjul/ (say spuykyoohl) noun 1. a small or minute, slender, sharp pointed body or part; a small, needle like crystal, process, or the like. 2. Zoology one of the small, hard, calcareous or siliceous bodies which… …
spicule — n. 1 any small sharp pointed body. 2 Zool. a small hard calcareous or siliceous body, esp. in the framework of a sponge. 3 Bot. a small or secondary spike. 4 Astron. a spikelike prominence, esp. one appearing as a jet of gas in the sun s corona.… … Useful english dictionary
Sponge spicule — Sponge spicules Spicules are structural elements found in most sponges. They provide structural support and deter predators. Large spicules, visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed… … Wikipedia
Tunicate — Temporal range: Cambrian stage 3–Recent … Wikipedia
Calcium in biology — Calcium (Ca2+) plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions… … Wikipedia
