Definition of segment

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Segment (n.) One of the divisions, rings, or joints into which many animal bodies are divided; a somite; a metamere; a somatome..

Lern More About Segment

Chilopoda :: Chilopoda (n. pl.) One of the orders of myriapods, including the centipeds. They have a single pair of elongated legs attached laterally to each segment; well developed jaws; and a pair of thoracic legs converted into poison fangs. They are insectivorous, very active, and some species grow to the length of a foot..
Ennation :: Ennation (n.) The ninth segment in insects.
Segment :: Segment (n.) One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation..
Tubicolae :: Tubicolae (n. pl.) A division of annelids including those which construct, and habitually live in, tubes. The head or anterior segments usually bear gills and cirri. Called also Sedentaria, and Capitibranchiata. See Serpula, and Sabella..
Scutum :: Scutum (n.) The second and largest of the four parts forming the upper surface of a thoracic segment of an insect. It is preceded by the prescutum and followed by the scutellum. See the Illust. under Thorax.
Article :: Article (n.) One of the segments of an articulated appendage.
Manitrunk :: Manitrunk (n.) The anterior segment of the thorax in insects. See Insect.
Annulose :: Annulose (a.) Furnished with, or composed of, rings or ringlike segments; ringed..
Articulus :: Articulus (n.) A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.
Anadromous :: Anadromous (a.) Tending upwards; -- said of terns in which the lowest secondary segments are on the upper side of the branch of the central stem.
Internode :: Internode (n.) A part between two joints; a segment; specifically, one of the phalanges..
Metameric :: Metameric (a.) Of or pertaining to a metamere or its formation; as, metameric segmentation..
Thigh :: Thigh (n.) The proximal segment of the hind limb between the knee and the trunk. See Femur.
Metamere :: Metamere (n.) One of successive or homodynamous parts in animals and plants; one of a series of similar parts that follow one another in a vertebrate or articulate animal, as in an earthworm; a segment; a somite. See Illust. of Loeven's larva..
Nephridium :: Nephridium (n.) A segmental tubule; one of the tubules of the primitive urinogenital organs; a segmental organ. See Illust. under Loeven's larva.
Osmaterium :: Osmaterium (n.) One of a pair of scent organs which the larvae of certain butterflies emit from the first body segment, either above or below..
Segmental :: Segmental (a.) Relating to, or being, a segment..
Actinomere :: Actinomere (n.) One of the radial segments composing the body of one of the Coelenterata.
Fission :: Fission (n.) A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See Segmentation, and Cell division, under Division..
Morula :: Morula (n.) The sphere or globular mass of cells (blastomeres), formed by the clevage of the ovum or egg in the first stages of its development; -- called also mulberry mass, segmentation sphere, and blastosphere. See Segmentation..
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