somite

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so·mite

(sō′mīt′)

1. Any of the homologous segments that compose the body of certain animals, such as earthworms and lobsters, and are arranged in a longitudinal series.

2. A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.

[Greek sōma, body; see soma¹ + -ite.]

so·mit′ic (sō-mĭt′ĭk) 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.

somite

(ˈsəʊmaɪt)

1. (Zoology) embryol any of a series of dorsal paired segments of mesoderm occurring along the notochord in vertebrate embryos. It develops into muscle and bone in the adult animal

2. (Zoology) zoology another name for metamere

[C19: from Greek sōma a body]

somital, somitic adj

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

so•mite

(ˈsoʊ maɪt)

n.

1. any of the longitudinal series of segments or parts into which the body of certain animals is divided; a metamere.

2. one of the thickened segments of tissue that occur in pairs along the back of the vertebrate embryo.

[1865–70; < Greek sôm(a) body]

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Noun

somite - one of a series of similar body segments into which some animals are divided longitudinally

metamere

segment - one of the parts into which something naturally divides; "a segment of an orange"

References in periodicals archive ?

E.The role of positive and negative signals in somite patterning.

Immunolocalization of Morphogen Sonic Hedgehog in Salmon Fry (Salmo salar)/Inmunolocalizacion del Morfogeno Sonic Hedhehog en Alevines de Salmon (Salmo salar)

The following somatic parts of each crab were measured: maximum carapace width (CW; was always measured behind the third cephalothoracic spine), abdomen width for females (AW; obtained from the 5 th to 6th abdominal somite) and gonopod length for males (GL) to the nearest 0.1 mm using a Vernier caliper.

Population structure of the burrowing crab Neohelice granulata (Brachyura, Varunidae) in a southwestern Atlantic salt marsh/Estructura poblacional del cangrejo cavador Neohelice granulata (Brachyura, Varunidae) en una marisma del Atlantico sudoccidental

First leg-bearing somite separates from cephalosome.

A new copepod with transformed body plan and unique phylogenetic position parasitic in the acorn worm Ptychodera flava

Closure of cranial neuropore occurs at about 25th day (8-20 somite stage) whereas the posterior neuropore closes at about 28th day (25 somite stage).

A rare case of hypogastric omphalocoele with sacral meningocoele

GFP expression in somite muscle was more intense in anterior somites than in posterior somites at early larval stages, but posterior expression increased gradually over time in later larval stages.

Biosensor zebrafish provide new insights into potential health effects of environmental estrogens

Many significant studies about somite fate were performed using the quail-chick cross-transplantation technique, and somite cross-transplantation has been employed to describe the origin of the brachial muscles (Beresford, 1983), identify a population of cells within the somite that give rise to the muscles of the back and a second population of cells that give rise to the limb musculature (Ordahl and Le Douarin, 1992), and the fate of the first somite (Huang et al., 1997).

Avian somitic cell chimeras using surrogate eggshell technology

A faint rectangular area is located on the eighth thoracic somite. No habitat data other than depth were given with the specimens I examined.

The status of Benthesicymus laciniatus Rathbun (Decapoda, Penaeoidea, Benthesicymidae) in the northeastern Pacific

5, A and K): Abdomen six-segmented; dorsomedian spines on posterior margin of the 1st-5th abdominal somites; one pair of spines on posterolateral margins of 5th and 6th abdominal somites; 6th abdominal somite also with one pair of spines on lateroventral margin; pereiopods appeared.

Larval development of the kishi velvet shrimp, Metapenaeopsis dalei (Rathbun) (Decapoda: Penaeidae), reared in the laboratory

Lassar, "Asymmetric localization of numb in the chick somite and the influence of myogenic signals," Developmental Dynamics, vol.

Angelica Sinensis Polysaccharide Prevents Hematopoietic Stem Cells Senescence in D-Galactose-Induced Aging Mouse Model

Abdomen of six somites, and telson free articulated, widest at third segment, which represents almost 3A of entire length; gradually narrowing from third somite to telson, which is obtusely rounded.

Austinotheres angelicus (Lockington, 1877): nombre correcto para el cangrejo simbiotico Juxtafabia muliniarum sensu Cabrera-Pena et al

Male crabs have a thin and narrow abdomen and a pair of long thin pleopods (gonopods) on the ventral surface of the first abdominal somite. Female crabs have large and wide abdomens and four pairs of long setose pleopods from the second to the fifth abdominal somites (McLaughlin, 1980).

The enigmatic life history of the symbiotic crab Tunicotheres moseri (crustacea, brachyura, Pinnotheridae): implications for its mating system and population structure

Tissues such as the liver, forebrain, lateral line (a sensory system found in aquatic vertebrates), otic vesicles, eyes, heart, and cranial and somite muscle appeared to be strongly affected by some of the compounds tested, but not others.