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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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Zoology. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-2

"spicule." A Dictionary of Zoology. . Retrieved April 26, 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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Nursing. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Nursing. . Retrieved April 26, 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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/spicule

"spicule." The Columbia Encyclopedia, 6th ed.. . Retrieved April 26, 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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Earth Sciences. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Earth Sciences. . Retrieved April 26, 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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Ecology. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-0

"spicule." A Dictionary of Ecology. . Retrieved April 26, 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. 26 Apr. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Plant Sciences. . Encyclopedia.com. (April 26, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1

"spicule." A Dictionary of Plant Sciences. . Retrieved April 26, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1