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]

Farlex Partner Medical Dictionary © Farlex 2012

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]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

spicule

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

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

spic·ule

(spik'yūl)

A small, needle-shaped body.

[L. spiculum, dim. of spica, or spicum, a point]

Medical Dictionary for the Dental Professions © Farlex 2012

References in periodicals archive ?

Seventy-five of each type of spicule were measured (Fig.

Freshwater Sponges (Porifera: Spongillida) of Tennessee

Hexamermis cathetospiculae, found in lepidopterans, is distinguished by the size of the spicules (289-334 [micro]m) and the genital papillae having three broken (double) rows, lateral double rows containing 20-32 papillae each, extending previously past the cloacal opening, but only half-length the spicules, median double row of 20-25 papillae extending previously almost the lateral papillae.

Una nueva especie de Hexamermis Steiner, 1924 (Nematoda, Mermithidae) parasito de Epilachna paenulata (Germar, 1824) (Coleopera, Coccinellidae) en Argentina

Again the shape of the spicules on the papillae is characteristic; as is the number of branchial folds (Van Name 1945).

Three Antarctic ascidians from Four Ladies Bank: Cnemidocarpa pfefferi (Michaelsen, 1898), Pyura discoveryi (Herdman, 1910) and Bathypera splendens Michaelsen, 1904

a) General image of calcareous spicules specific to I.

Density and population parameters of sea cucumber Isostichopus badionotus (Echinodermata: Stichopodidae) at Sisal, Yucatan

It is important to note that the length of the left spicule is similar in the 6 known species of Dipetalonema (Table 1), however there are differences in the lengths of the different portions of the spicule.

FIRST RECORD OF Dipetalonema robini PETIT, BAIN & ROUSSILHON 1985 (NEMATODA: ONCHOCERCIDAE) PARASITIZING Sapajus nigritus IN NORTHEASTERN ARGENTINA

Posterior end, with bursal papillae, lateral view, spicule and gubernaculum.

Heterorhabditis bacteriophora cepa-VEli (Nematoda): identificacion y patogenia sobre Lobiopa insularis (Coleoptera: Nitidulidae) plaga de la fresa

The layer of the Sun's atmosphere just above the visible surface contains violently driven jets of plasma called spicules that have been observed for over a century.

Scientists understand the formation of sun's spicules

The spicules show promise for clearing this hurdle.

Artificial, bonelike material developed

Tubular carcinoma should be considered in the differential diagnosis of a small spiculated mass, especially if it has long spicules [10].

Tubular Carcinoma of the Breast: Advantages and Limitations of Breast Tomosynthesis

Characterization of cytoplasmatic extensions/gripping spicules indicated that they appeared to respond directly to increasing [alpha]-solanine concentration.

A Reliable and Reproducible Model for Assessing the Effect of Different Concentrations of [alpha]-Solanine on Rat Bone Marrow Mesenchymal Stem Cells

On fundus examination, bilateral optic atrophy was seen with severe attenuated vessels, bony spicules and cystoid macular edema.

Batten disease: a rare case report and review of literature

Its microscopic features include septate, branched, hyaline hyphae with clamp connections, spicules, and/or basidiospores.[sup][3] However, molecular techniques are required for definitive identification of S.