Definition of spicule

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Spicule (n.) A minute, slender granule, or point..

Lern More About Spicule

Radiolaria :: Radiolaria (n. pl.) Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina..
Sclerite :: Sclerite (n.) A hard chitinous or calcareous process or corpuscle, especially a spicule of the Alcyonaria..
Rotate :: Rotate (a.) Having the parts spreading out like a wheel; wheel-shaped; as, a rotate spicule or scale; a rotate corolla, i.e., a monopetalous corolla with a flattish border, and no tube or a very short one..
Tricurvate :: Tricurvate (a.) Curved in three directions; as, a tricurvate spicule (see Illust. of Spicule)..
Spongiopilin :: Spongiolite (n.) One of the microsporic siliceous spicules which occur abundantly in the texture of sponges, and are sometimes found fossil, as in flints..
Spink :: Spinii-spirulate (a.) Having spines arranged spirally. See Spicule.
Spiculigenous :: Spiculigenous (a.) Producing or containing spicules.
Anchor :: Anchor (n.) One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species of Synapta..
Suberone :: Suberite (n.) Any sponge of the genus Suberites and allied genera. These sponges have a fine and compact texture, and contain minute siliceous spicules..
Spicule :: Spicule (n.) Same as Spicula.
Spiculate :: Spiculate (a.) Covered with, or having, spicules..
Hyalospongia :: Hyalospongia (n. pl.) An order of vitreous sponges, having glassy six-rayed, siliceous spicules; -- called also Hexactinellinae..
Spiculum :: Spiculum (n.) Same as Spicule.
Hexactinellid :: Hexactinellid (a.) Having six-rayed spicules; belonging to the Hexactinellinae.
Halichondriae :: Halichondriae (n. pl.) An order of sponges, having simple siliceous spicules and keratose fibers; -- called also Keratosilicoidea..
Silicoidea :: Silicoidea (n. pl.) An extensive order of Porifera, which includes those that have the skeleton composed mainly of siliceous fibers or spicules..
Calcispongiae :: Calcispongiae (n. pl.) An order of marine sponges, containing calcareous spicules. See Porifera..
Tetractinellida :: Tetractinellida (n. pl.) A division of Spongiae in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellinae.
Scepterellate :: Scepterellate (a.) Having a straight shaft with whorls of spines; -- said of certain sponge spicules. See Illust. under Spicule.
Trichite :: Trichite (n.) A delicate, hairlike siliceous spicule, found in certain sponges..
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