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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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Zoology. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-2

"spicule." A Dictionary of Zoology. . Retrieved May 23, 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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Nursing. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Nursing. . Retrieved May 23, 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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/spicule

"spicule." The Columbia Encyclopedia, 6th ed.. . Retrieved May 23, 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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Earth Sciences. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule

"spicule." A Dictionary of Earth Sciences. . Retrieved May 23, 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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Ecology. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-0

"spicule." A Dictionary of Ecology. . Retrieved May 23, 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. 23 May. 2017 <http://www.encyclopedia.com>.

"spicule." A Dictionary of Plant Sciences. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1

"spicule." A Dictionary of Plant Sciences. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spicule-1