spicule


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Related to spicule: spongin

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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

spic·ule

n. espícula, cuerpo en forma de aguja.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
To obtain clean spicule preparations for SEM observation and LM slides excised sponge was dissolved in test tubes containing 65% nitric acid.
The facies analysis of the Formation revealed ooidal-peloidal grainstones, bioclastic-peloidal grainstones, bioclastic-intraclastic-peloidal grainstones, bioclastic-peloidal packstones, peloidal-ooidal-bioclastic wacke-packstones, peloidal-bioclastic wackestones, bioclastic mudstones, spicule rich mudstone microfacies anddolostone facies.
The morphometric characters viz., body length, body width, stylet length, stylet cone, stylet shaft, length and width of stylet knobs, DGO, head to metacorpus distance, head to SE-pore position and spicule length showed little difference between two populations (Fig.
In contrast, the patient we report had persistent respiratory signs and symptoms and concomitant TSPyV-positive (by PCR) respiratory samples in conjunction with varying forms of skin lesion lacking the characteristic spicule form of trichodysplasia spinulosa.
In addition, the bone of contention was "can such a small bony spicule be a source of craniofacial pain?" Although it is inviting to speculate that the intricate vascular and diverse neural networks within the tensor tympani muscle attached to the pterygoid hamulus as a plausible explanation, it cannot be substantiated by the scarcity of reports published in the literature.
Left spicule 980 long, with a handle shorter than lamina representing the 27% of the spicule length; lamina consisting of a portion with membranous alae and a terminal filament or flagellum, and portion with membranous alae longer than filament (Fig.
The following morphometric data were analyzed: L, total body length; MBW, maximum body width; ABW, analbody width; VBW, vulval-body width; EP, distance from anterior end to excretory pore; ES, distance from anterior end to base of esophagus; GuL, gubernaculum length; GuW, gubernaculum width; NR, nerve-ring position; STL, stoma length; STW, stoma width; SpL, spicule length; SpW, spicule width; TL, tail length, TRL, testis-reflection length; D, EP/ ES; E, EP/TL; GS, GuL/SpL; V%, (L/length to vagina) x 100.
The method presented permits analysis of parameters including spicule formation, cytoplasmic condensation, the number and characteristics of nucleoli, and cell adhesion characteristics.
mawsonae has smaller spicules, left spicule 665-874 [micro]m long, right spicule 247-323 [micro]m long, and Procyrnea sp.
No studies have yet been conducted to determine whether spicule deposits by the same sponge community are presently taking place in karstic lakes, as well as the processes involved in the present deposit formation.
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.