Definition of Spicule. Meaning of Spicule. Synonyms of Spicule

Here you will find one or more explanations in English for the word Spicule. Also in the bottom left of the page several parts of wikipedia pages related to the word Spicule and, of course, Spicule synonyms and on the right images related to the word Spicule.

Definition of Spicule

Spicule
Spicule Spic"ule, n. [L. spiculum a little point, a dart.] 1. A minute, slender granule, or point. 2. (Bot.) Same as Spicula. 3. (Zo["o]l.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria. Note: Spicules vary exceedingly in size and shape, and some of those found in siliceous sponges are very complex in structure and elegant in form. They are of great use in classification. Description of the Illustration: a Acerate; b Tricurvate, or Bowshaped; c d Hamate; e Broomshaped; f Scepterellate; g Spinispirulate; h Inequi-anchorate; i Sexradiate; j A Trichite Sheaf; k Six-rayed Capitate; l Rosette of Esperia; m Equi-anchorate.

Meaning of Spicule from wikipedia

- ****ules are any of various small needle-like anatomical structures occurring in organisms ****ule may also refer to: ****ule (sponge), small skeletal...
- ****ules are structural elements found in most sponges. They provide structural support and deter predators. Large ****ules that are visible to the naked...
- osteoid, which increases the size of the ****ule. As the ****ules continue to grow, they fuse with adjacent ****ules and this results in the formation of...
- (roundworms), ****ules, or co****tory ****ules, are needle-like mating structures found only in males. Male nematodes may have one or two ****ules, which serve...
- In solar physics, a ****ule is a dynamic jet of plasma, about 300 km diameter, in the chromosphere of the Sun. They move upwards with speeds between 15...
- mesohyl is stiffened by mineral ****ules, by spongin fibers, or both. Demosponges use spongin; many species have silica ****ules, whereas some species have...
- above the Sun's surface: sunspots and faculae, occur in the photosphere, ****ules, Hα filaments and plages in the chromosphere, prominences in the chromosphere...
- more chitinized ****ules move out of the cloaca and are inserted into the genital pore of the female. Amoeboid sperm crawl along the ****ule into the female...
- are sponges with a skeleton made of four- and/or six-pointed siliceous ****ules, often referred to as gl**** sponges. They are usually cl****ified along...
- Osteoblast Osteoblasts (purple) rimming a bony ****ule (pink - on diagonal of image). In this routinely fixed and decalcified (bone mineral removed) tissue...
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