spicule

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spic·ule

 (spĭk′yo͞ol) also spic·u·la (-yə-lə)
n. pl. spic·ules also spic·u·lae (-yə-lē)
1. 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.
2. Astronomy A spike-shaped formation emanating from the ionized gas of the solar photosphere.

[Latin spīculum; see spiculum.]

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

spicule

(ˈspɪkjuːl)
n
1. (Biology) Also called: spiculum a small slender pointed structure or crystal, esp any of the calcareous or siliceous elements of the skeleton of sponges, corals, etc
2. (Astronomy) astronomy a spiked ejection of hot gas occurring over 5000 kilometres above the sun's surface (in its atmosphere) and having a diameter of about 1000 kilometres
[C18: from Latin: spiculum]
spiculate adj

spic•ule

(ˈspɪk yul)

n.
1. a small, needlelike crystal, process, or the like.
2. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine and freshwater invertebrates.
[1775–85; < Latin spīculum]
spic′u•late` (-yəˌleɪt, -lɪt) adj.

spic·ule

(spĭk′yo͞ol)
A needle-like structure or part, such as one of the mineral structures supporting the soft tissue of certain invertebrates, especially sponges.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spicule - small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and coralsspicule - small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals
appendage, outgrowth, process - a natural prolongation or projection from a part of an organism either animal or plant; "a bony process"
Translations

spic·ule

n. espícula, cuerpo en forma de aguja.
References in periodicals archive ?
Fundus changes in retinitis pigmentosa include waxy pallor of optic disc (black arrow), arteriolar attenuation (white arrow head) and bony spicule pigmentation (white arrow) in the mid-peripheral fundus, which is predominantly populated by rods.
High-resolution computed tomography (CT) of the temporal bones showed significant ossicular displacement; no evidence of a fracture or penetrating bony spicule involving the tympanic segment of the facial nerve was found (figure).
It was also found that in some atlas vertebrae a bony spicule arises from a posterior side of superior articular surface or the lateral side of superior articular surface.
First Trimester Abortion: A Rare Cause of Intrauterine Bony Spicules.