Definition of Spicule

1. Noun. Small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals.

Exact synonyms: Spiculum
Generic synonyms: Appendage, Outgrowth, Process

Definition of Spicule

1. n. A minute, slender granule, or point.

Definition of Spicule

1. Noun. A sharp, needle-like piece ¹

2. Noun. (biology) Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges ¹

3. Noun. (astronomy) A jet of matter ejected from the photosphere of the sun ¹

4. Noun. A small spike of flowers ¹

¹ Source:

Definition of Spicule

1. a needlelike structure [n -S]

Medical Definition of Spicule

1. A small, slender, sharp-pointed piece, usually on a surface, a small spike of flowers. (09 Oct 1997)

Spicule Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Spicule Images

Lexicographical Neighbors of Spicule

spick and span
spicule (current term)
spider's web
spider's webs
spider angioma
spider angiomas

Literary usage of Spicule

Below you will find example usage of this term as found in modern and/or classical literature:

1. Report of the Annual Meeting (1907)
"By Professor EA MINCHIN, М.Л. A spicule is to be defined as a sclerite of intra-cellular origin and growth. It may be formed of organic material entirely ..."

2. A Treatise on Zoology by Edwin Ray Lankester (1900)
"41), of skeletal material upon a primary spicule ; or to union of several ... 107), in which each ray represents a distinct primary spicule or spicular ..."

3. Fossil Sponge Spicules from the Upper Chalk: Found in the Interior of a George Jennings Hinde by George Jennings Hinde (1880)
"Zone spicule with simple trifid head 29 Fig- J> T*16 same- Zone spicule with compound ... Head of compound trifid spicule 29 Fig. 6 Geodia ? coronata n. sp. ..."

4. The Encyclopedia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1911)
"... in the protoplasm: or, lastly, they may deposit carbonate of lime, so that one or several of them together produce a calcareous spicule in the test. ..."

5. The Student, and Intellectual Observer (1871)
"Spiny spicule from margin of osculum. 10. Large quinque-radiate spicule of outer network. x about 13. 11. One form of hamate spicule from fascicle of beard- ..."

6. Bulletin of the American Museum of Natural History by American Museum of Natural History (1919)
"Simple, spirally-wound spicule, with more than one volution (PI. V, fig. 10). 5. ... A small s- or c-shaped, curved and spirally-wound spicule (PI. V, fig. ..."

7. Forms of Animal Life: A Manual of Comparative Anatomy : with Descriptions of by George Rolleston, William Hatchett Jackson (1888)
"The calcareous spicule is covered by a sheath or cuticle, by the calcification of which the spicule grows, and outside the cuticle by a layer of ..."

Other Resources Relating to: Spicule

Search for Spicule on!Search for Spicule on!Search for Spicule on Google!Search for Spicule on Wikipedia!