spicule

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spicule

 [spik´ūl]
a sharp, needle-like body or spike.

spic·ule

(spik'yūl),
1. A small needle-shaped body.
2. Accessory reproductive structure in male nematodes; useful in identification of species.
[L. spiculum, dim. of spica, or spicum, a point]

spicule

/spic·ule/ (spik´ūl) a sharp, needle-like body.

spicule

(spĭk′yo͞ol) also

spicula

(-yə-lə)
n. pl. spic·ules also spic·ulae (-yə-lē)
A small needlelike structure or part, such as one of the silicate or calcium carbonate processes supporting the soft tissue of certain invertebrates, especially sponges.

spic′u·lar (-yə-lər), spic′u·late (-yə-lĭt, -lāt′) adj.

spicule

[spik′yo̅o̅l]
Etymology: L, spiculum, point
a small sharp body with a needlelike point.

spic·ule

(spik'yūl)
A small, needle-shaped body.
[L. spiculum, dim. of spica, or spicum, a point]

spicule

  1. a small spiked structure in male nematode worms that assists in copulation.
  2. a slender rod of calcium carbonate found in sponges, that supports the soft wall.

spicule

small spike at outer margin of the nail plate that can penetrate local nail wall (causing paronychia/ingrowing toenail) or cause local pain (i.e. a hang nail)

spic·ule

(spik'yūl)
A small, needle-shaped body.
[L. spiculum, dim. of spica, or spicum, a point]

spicule (spik´ūl),

n a small needle-shaped body.

spicule

1. a sharp, needle-like body or spike.
2. part of the male genital apparatus in nematodes; they engage the female genital orifice during copulation.
References in periodicals archive ?
The researchers were able to determine the physical interactions between magnetic fields and solar plasma that generate spicules, helping to understand our nearest star.
rahimi in the following characteristic features: Eggs provide with long filaments, right spicules widened with reflected barb at distal tips, tail tips possess a short blunt spine-like structures in both the sexes of R.
AQPs also have been identified in sponges, and are associated with dehydration and biosilica hardening in species that synthesize spicules (Muller et al.
The characteristic radiating spicules with the scalloped non sclerotic margins are better appreciated.
The 'head' of the spicules in synthetic emeralds is usually composed of grains of synthetic phenakite, beryl, chrysoberyl, gold or other mineralizers (Choudhary and Golecha, 2007).
In the present adrenal ML case, BMP2 expression was positive in the matrix adjacent to tumour cells, where bone spicules were also found with osteoblast-like cells.
Male worms presented two unequal spicules, relatively slender, rounded anteriorly and pointed posteriorly.
The chromosphere is characterized by numerous structural features, the most important of which are spicules (see Fig.
Some species in Uraba bear siliceous spicules larger than in other Caribbean areas, probably owing to additional silicon input from heavy river discharge in the gulf.
On high-resolution CT, the tumor may contain calcified intratumoral spicules with a honeycomb appearance and cause irregular expansion of the surrounding bone.
Inspired by the sponges' lightweight but impenetrable defense system, experts from Johannes Gutenberg Universitat (including Muller) and the Max Planck Institute for Polymer Research built a synthetic version of the creatures' spicules (tiny, prickly splinters) using calcite and silicatein-[alpha], a protein from siliceous sponges that catalyzes the formation of silicon dioxide (silica)--the main ingredient in Porifera spicules.