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spicule

spicule A small needle or spine, or a small, spiky, skeletal element. In Porifera (sponges), spicules form a skeletal framework supporting the soft, cellular mass. They exist in a variety of forms and are important in the identification and classification of species. An extensive nomenclature has developed through the use of these structures in poriferan taxonomy (e.g. they may be described as monoaxon, tetraxon, triaxon, hexaxon, polyaxon, megasclere, or microsclere). Spicules may be calcareous, siliceous, or of a fibrous material (spongin).

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"spicule." A Dictionary of Zoology. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Zoology. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-2

"spicule." A Dictionary of Zoology. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-2

spicule

spicule (spik-yool) n. a small splinter of bone.

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"spicule." A Dictionary of Nursing. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Nursing. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Nursing. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/spicule

spicule

spicule: see chromosphere.

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"spicule." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/spicule

"spicule." The Columbia Encyclopedia, 6th ed.. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/spicule

spicule

spicule A small needle or spine.

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"spicule." A Dictionary of Earth Sciences. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Earth Sciences. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Earth Sciences. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule

spicule

spicule A small needle or spine.

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"spicule." A Dictionary of Ecology. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Ecology. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-0

"spicule." A Dictionary of Ecology. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-0

spicule

spicule A small needle or spine.

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"spicule." A Dictionary of Plant Sciences. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Plant Sciences. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1

"spicule." A Dictionary of Plant Sciences. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1