Definition of spicule in English:

spicule

noun ˈspɪkjuːlˈspɪkjul

1technical A minute sharp-pointed object or structure that is typically present in large numbers, such as a fine particle of ice.
Example sentencesExamples
- The tarpaulin that covers the entrance is gashed in several places, undoubtedly caused by the ice spicules flying at speeds that made them deadly projectiles.
- A general overview on the structural organization of the proteinaceous filament inside spicules is presented.
- The sharp spots in the diffraction patterns shown in Fig.5 indicated that the protein units forming the central filaments inside the spicules must be organized with a very high degree of order.
- The spicules of bone revealed the characteristic corallike branching.
- The possibility of obtaining some structural information on the filaments inside the spicules can certainly give a more realistic picture of their organization.
1. 1.1Zoology Each of the small needle-like or sharp-pointed structures of calcite or silica that make up the skeleton of a sponge.
  Example sentencesExamples
  Sponge spicules are also an abundant constituent of the rhythmites.
  Recently spicules from sponges of the class Hexactinellida have been identified in Ediacaran age rocks.
  G. cydonium spicules show equatorial spots up to the third order, which are consistent with a very regular hexagonal arrangement of protein units aligned along the spicule axis.
  Another factor that must be taken into account to interpret the different behavior of the various spicules is the morphology of the spicules investigated.
  Pillow lava and marine sponge spicules found in the contact zones between individual layers of the Columbia River Basalt suggest that these lava layers flowed out under water and that the water was ocean water, not freshwater from a lake.
  Synonyms
  needle, quill, bristle, barb, spike, prickle
2Astronomy
A short-lived, relatively small radial jet of gas in the chromosphere or lower corona of the sun.
Example sentencesExamples
- Penetrating the chromosphere are spikes of gas that rapidly jet upwards and then fall back again; these are termed spicules.
- Although relatively small compared to full scale solar flares, spicules are interesting for the same reasons: they may contribute to the solar wind.

Derivatives

spicular

adjective ˈspɪkjʊləˈspɪkjələr

However, in specimens in which the secondary rays are well developed, the spicular structure becomes complicated and the primary six-rayed spicule is difficult to discern.
Example sentencesExamples
- Subsequent microscopic study of the outer layer shows that, in a few specimens, patches of the microcrystalline material grade laterally into vestigial spicular fabric.
- The spicular skeleton consists of six rays triaxially arranged.
- Locally there are ‘hints’ of a parallel fibrous, possibly spicular, structure in the normally irregularly crystalline microstructure of the trabeculae.
- They are largely silicified replacements of the once opaline skeletons, but details of their spicular and skeletal relationships are moderately well preserved.

spiculate

adjective ˈspɪkjʊlətˈspɪkjələt

As I watched my films slide out of the processor, there it was in my left breast: a tiny spiculate smudge.
Example sentencesExamples
- The labrum is wide, with spiculate ridges.
- The dorsum is entirely covered with long spiculate papillae, about 130 m in length which are characteristic of that genus.
- Shallow lobulation is observed and short thin spinule, deep lobulation or spiculate protuberance is not observed in the tumour edge.
- Your photos show the heavily spiculate skin of the mantle and the tubercles very well.

spiculation

noun

Architectural distortion, spiculation, and microcalcifications are rare (with the exception of ovarian carcinoma).
Example sentencesExamples
- Calcifications, size, location, edges, and spiculations were documented for each nodule.
- Lobulation, spiculation, and satellite lesions all suggest an increased likelihood of malignancy.
- The shape was roughly ovoid, but the borders reveal areas of spiculation with extension to the pleural margin.
- Typical findings include spiculation of the mucosa, spasm, abscess, or evidence of frank perforation.

Origin

Late 18th century: from modern Latin spicula, spiculum, diminutives of spica 'ear of grain'.

Definition of spicule in US English:

spicule

nounˈspikyo͞olˈspɪkjul

1technical A minute sharp-pointed object or structure that is typically present in large numbers, such as a fine particle of ice.
Example sentencesExamples
- The tarpaulin that covers the entrance is gashed in several places, undoubtedly caused by the ice spicules flying at speeds that made them deadly projectiles.
- A general overview on the structural organization of the proteinaceous filament inside spicules is presented.
- The spicules of bone revealed the characteristic corallike branching.
- The possibility of obtaining some structural information on the filaments inside the spicules can certainly give a more realistic picture of their organization.
- The sharp spots in the diffraction patterns shown in Fig.5 indicated that the protein units forming the central filaments inside the spicules must be organized with a very high degree of order.
1. 1.1Zoology Each of the small needle-like or sharp-pointed structures of calcite or silica that make up the skeleton of a sponge.
  Example sentencesExamples
  Sponge spicules are also an abundant constituent of the rhythmites.
  G. cydonium spicules show equatorial spots up to the third order, which are consistent with a very regular hexagonal arrangement of protein units aligned along the spicule axis.
  Pillow lava and marine sponge spicules found in the contact zones between individual layers of the Columbia River Basalt suggest that these lava layers flowed out under water and that the water was ocean water, not freshwater from a lake.
  Recently spicules from sponges of the class Hexactinellida have been identified in Ediacaran age rocks.
  Another factor that must be taken into account to interpret the different behavior of the various spicules is the morphology of the spicules investigated.
  Synonyms
  needle, quill, bristle, barb, spike, prickle
2Astronomy
A short-lived, relatively small radial jet of gas in the chromosphere or lower corona of the sun.
Example sentencesExamples
- Although relatively small compared to full scale solar flares, spicules are interesting for the same reasons: they may contribute to the solar wind.
- Penetrating the chromosphere are spikes of gas that rapidly jet upwards and then fall back again; these are termed spicules.

Origin

Late 18th century: from modern Latin spicula, spiculum, diminutives of spica ‘ear of grain’.

单词	spicule
释义	Definition of spicule in English: spicule noun ˈspɪkjuːlˈspɪkjul 1technical A minute sharp-pointed object or structure that is typically present in large numbers, such as a fine particle of ice. Example sentencesExamples The tarpaulin that covers the entrance is gashed in several places, undoubtedly caused by the ice spicules flying at speeds that made them deadly projectiles. A general overview on the structural organization of the proteinaceous filament inside spicules is presented. The sharp spots in the diffraction patterns shown in Fig.5 indicated that the protein units forming the central filaments inside the spicules must be organized with a very high degree of order. The spicules of bone revealed the characteristic corallike branching. The possibility of obtaining some structural information on the filaments inside the spicules can certainly give a more realistic picture of their organization. 1.1Zoology Each of the small needle-like or sharp-pointed structures of calcite or silica that make up the skeleton of a sponge. Example sentencesExamples Sponge spicules are also an abundant constituent of the rhythmites. Recently spicules from sponges of the class Hexactinellida have been identified in Ediacaran age rocks. G. cydonium spicules show equatorial spots up to the third order, which are consistent with a very regular hexagonal arrangement of protein units aligned along the spicule axis. Another factor that must be taken into account to interpret the different behavior of the various spicules is the morphology of the spicules investigated. Pillow lava and marine sponge spicules found in the contact zones between individual layers of the Columbia River Basalt suggest that these lava layers flowed out under water and that the water was ocean water, not freshwater from a lake. Synonyms needle, quill, bristle, barb, spike, prickle 2Astronomy A short-lived, relatively small radial jet of gas in the chromosphere or lower corona of the sun. Example sentencesExamples Penetrating the chromosphere are spikes of gas that rapidly jet upwards and then fall back again; these are termed spicules. Although relatively small compared to full scale solar flares, spicules are interesting for the same reasons: they may contribute to the solar wind. Derivatives spicular adjective ˈspɪkjʊləˈspɪkjələr However, in specimens in which the secondary rays are well developed, the spicular structure becomes complicated and the primary six-rayed spicule is difficult to discern. Example sentencesExamples Subsequent microscopic study of the outer layer shows that, in a few specimens, patches of the microcrystalline material grade laterally into vestigial spicular fabric. The spicular skeleton consists of six rays triaxially arranged. Locally there are ‘hints’ of a parallel fibrous, possibly spicular, structure in the normally irregularly crystalline microstructure of the trabeculae. They are largely silicified replacements of the once opaline skeletons, but details of their spicular and skeletal relationships are moderately well preserved. spiculate adjective ˈspɪkjʊlətˈspɪkjələt As I watched my films slide out of the processor, there it was in my left breast: a tiny spiculate smudge. Example sentencesExamples The labrum is wide, with spiculate ridges. The dorsum is entirely covered with long spiculate papillae, about 130 m in length which are characteristic of that genus. Shallow lobulation is observed and short thin spinule, deep lobulation or spiculate protuberance is not observed in the tumour edge. Your photos show the heavily spiculate skin of the mantle and the tubercles very well. spiculation noun Architectural distortion, spiculation, and microcalcifications are rare (with the exception of ovarian carcinoma). Example sentencesExamples Calcifications, size, location, edges, and spiculations were documented for each nodule. Lobulation, spiculation, and satellite lesions all suggest an increased likelihood of malignancy. The shape was roughly ovoid, but the borders reveal areas of spiculation with extension to the pleural margin. Typical findings include spiculation of the mucosa, spasm, abscess, or evidence of frank perforation. Origin Late 18th century: from modern Latin spicula, spiculum, diminutives of spica 'ear of grain'. Definition of spicule in US English: spicule nounˈspikyo͞olˈspɪkjul 1technical A minute sharp-pointed object or structure that is typically present in large numbers, such as a fine particle of ice. Example sentencesExamples The tarpaulin that covers the entrance is gashed in several places, undoubtedly caused by the ice spicules flying at speeds that made them deadly projectiles. A general overview on the structural organization of the proteinaceous filament inside spicules is presented. The spicules of bone revealed the characteristic corallike branching. The possibility of obtaining some structural information on the filaments inside the spicules can certainly give a more realistic picture of their organization. The sharp spots in the diffraction patterns shown in Fig.5 indicated that the protein units forming the central filaments inside the spicules must be organized with a very high degree of order. 1.1Zoology Each of the small needle-like or sharp-pointed structures of calcite or silica that make up the skeleton of a sponge. Example sentencesExamples Sponge spicules are also an abundant constituent of the rhythmites. G. cydonium spicules show equatorial spots up to the third order, which are consistent with a very regular hexagonal arrangement of protein units aligned along the spicule axis. Pillow lava and marine sponge spicules found in the contact zones between individual layers of the Columbia River Basalt suggest that these lava layers flowed out under water and that the water was ocean water, not freshwater from a lake. Recently spicules from sponges of the class Hexactinellida have been identified in Ediacaran age rocks. Another factor that must be taken into account to interpret the different behavior of the various spicules is the morphology of the spicules investigated. Synonyms needle, quill, bristle, barb, spike, prickle 2Astronomy A short-lived, relatively small radial jet of gas in the chromosphere or lower corona of the sun. Example sentencesExamples Although relatively small compared to full scale solar flares, spicules are interesting for the same reasons: they may contribute to the solar wind. Penetrating the chromosphere are spikes of gas that rapidly jet upwards and then fall back again; these are termed spicules. Origin Late 18th century: from modern Latin spicula, spiculum, diminutives of spica ‘ear of grain’.
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