Definition of segment

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Segment (v. i.) To divide or separate into parts in growth; to undergo segmentation, or cleavage, as in the segmentation of the ovum..

Lern More About Segment

Surbated :: Surbased (a.) Having the vertical height from springing line to crown less than the half span; -- said of an arch; as, a segmental arch is surbased..
Triparted :: Triparted (a.) Divided nearly to the base into three segments or lobes.
Tympanohyal :: Tympanohyal (n.) The proximal segment in the hyoidean arch, becoming a part of the styloid process of the temporal bone in adult man..
Micromere :: Micromere (n.) One of the smaller cells, or blastomeres, resulting from the complete segmentation of a telolecithal ovum..
Stylohyoid :: Stylohyal (n.) A segment in the hyoidean arch between the epihyal and tympanohyal.
Segment :: Segment (n.) A part cut off from a figure by a line or plane; especially, that part of a circle contained between a chord and an arc of that circle, or so much of the circle as is cut off by the chord; as, the segment acb in the Illustration..
Cestoidea :: Cestoidea (n. pl.) A class of parasitic worms (Platelminthes) of which the tapeworms are the most common examples. The body is flattened, and usually but not always long, and composed of numerous joints or segments, each of which may contain a complete set of male and female reproductive organs. They have neither mouth nor intestine. See Tapeworm..
Myriapoda :: Myriapoda (n. pl.) A class, or subclass, of arthropods, related to the hexapod insects, from which they differ in having the body made up of numerous similar segments, nearly all of which bear true jointed legs. They have one pair of antennae, three pairs of mouth organs, and numerous trachaae, similar to those of true insects. The larvae, when first hatched, often have but three pairs of legs. See Centiped, Galleyworm, Milliped..
Prescutum :: Prescutum (n.) The first of the four pieces composing the dorsal part, or tergum, of a thoracic segment of an insect. It is usually small and inconspicuous..
Periblast :: Periblast (a.) The protoplasmic matter which surrounds the entoblast, or cell nucleus, and undergoes segmentation..
Procerite :: Procerite (n.) The segment next to the flagellum of the antennae of Crustacea.
Segmentation :: Segmentation (n.) The act or process of dividing into segments; specifically (Biol.), a self-division into segments as a result of growth; cell cleavage; cell multiplication; endogenous cell formation..
Rhodophane :: Rhodophane (n.) The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane.
Epihyal :: Epihyal (n.) A segment next above the ceratohyal in the hyoidean arch.
Somite :: Somite (n.) One of the actual or ideal serial segments of which an animal, esp. an articulate or vertebrate, is is composed; somatome; metamere..
Parieto- :: Parieto- () A combining form used to indicate connection with, or relation to, the parietal bones or the parietal segment of the skull; as, the parieto-mastoid suture..
Alecithal :: Alecithal (a.) Applied to those ova which segment uniformly, and which have little or no food yelk embedded in their protoplasm..
Neuromere :: Neuromere (n.) A metameric segment of the cerebro-spinal nervous system.
Flanch :: Flanch (n.) A bearing consisting of a segment of a circle encroaching on the field from the side.
Inarticulate :: Inarticulate (a.) Not jointed or articulated; having no distinct body segments; as, an inarticulate worm..
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