spicule

(redirected from chromosphere)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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

(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.

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.

spic·ule

(spik'yūl)
A small, needle-shaped body.
[L. spiculum, dim. of spica, or spicum, a point]
References in periodicals archive ?
In sharp contrast, within the Liquid Metallic Hydrogen Solar Model (LMHSM) [7,8], the chromosphere is a site of hydrogen and proton capture, while the corona is responsible for harvesting electrons [8-12].
The gaseous models infer that the chromosphere has an average density of ~[10.sup.-12] g/[cm.sup.3] [115, p.
Hence, the spatial extent of the chromosphere constitutes one of the most elegant observations relative to the existence of a condensed solar photosphere.
Because carbon monoxide emissions could be seen above the sun's limb, Ayres contends that cold gas exists at fairly high altitudes inthe chromosphere. Moreover, the atmosphere's minimum temperature may occur at roughly 1,100 km above the sun's surface rather than at 500 km, he argues.
Photographing the chromosphere is slightly more complex in the ultraviolet range, since UV light is absorbed by the Earth's atmosphere.
This would also explain how it penetrated so deeply into the chromosphere, surviving the strong solar wind as well as the extreme temperatures, before evaporating.
During that time, protons andelectrons that leak out of the trap can rain down upon atoms in the chromosphere and spark the emission of gamma rays, he says.
As a longtime solar-telescope owner with aperture fever, I wanted to find out more, and requested the Chromosphere unit for further evaluation.
'The energy flux carried by the Alfven pulses we detected now are estimated to be more than 10 times higher than that needed for heating the local upper solar chromosphere,' said Dr Jiajia Liu, postdoctoral research associate.
The programme is diverse, with the solar physics projects involving observational and computational studies of the solar atmosphere from the chromosphere to the corona, with a particular emphasis on high-frequency imaging and spectroscopy of dynamic events, including wave generation, propagation and dissipation, the cancellation of magnetic elements and total solar eclipses.
The Aditya L1 mission will study the Sun continuously, and observe the photosphere, chromosphere, and the corona.