Definition of segment

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Segment (n.) One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation..

Lern More About Segment

Blastomere :: Blastomere (n.) One of the segments first formed by the division of the ovum.
Proglottis :: Proglottis (n.) One of the free, or nearly free, segments of a tapeworm. It contains both male and female reproductive organs, and is capable of a brief independent existence..
Amphiblastic :: Amphiblastic (a.) Segmenting unequally; -- said of telolecithal ova with complete segmentation.
Ectolecithal :: Ectolecithal (a.) Having the food yolk, at the commencement of segmentation, in a peripheral position, and the cleavage process confined to the center of the egg; as, ectolecithal ova..
Syzygy :: Syzygy (n.) Any one of the segments of an arm of a crinoid composed of two joints so closely united that the line of union is obliterated on the outer, though visible on the inner, side..
Prothorax :: Prothorax (n.) The first or anterior segment of the thorax in insects. See Illusts. of Butterfly and Coleoptera.
Cirrus :: Cirrus (n.) A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri..
Centrolecithal :: Centrolecithal (a.) Having the food yolk placed at the center of the ovum, segmentation being either regular or unequal..
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..
#NAME? :: -ment () A suffix denoting that which does a thing; an act or process; the result of an act or process; state or condition; as, aliment, that which nourishes, ornament, increment; fragment, piece broken, segment; abridgment, act of abridging, imprisonment, movement, adjournment; amazement, state of being amazed, astonishment..
Septfoil :: Septfoil (n.) A typical figure, consisting of seven equal segments of a circle, used to denote the gifts of the Holy Chost, the seven sacraments as recognized by the Roman Catholic Church, etc..
Myotome :: Myotome (n.) One of the embryonic muscular segments arising from the protovertebrae; also, one of the protovertebrae themselves..
Ectental :: Ectental (a.) Relating to, or connected with, the two primitive germ layers, the ectoderm and ectoderm; as, the ectental line or line of juncture of the two layers in the segmentation of the ovum..
Thoracica :: Thoracica (n. pl.) A division of cirripeds including those which have six thoracic segments, usually bearing six pairs of cirri. The common barnacles are examples..
Setigerous :: Setigerous (a.) Covered with bristles; having or bearing a seta or setae; setiferous; as, setigerous glands; a setigerous segment of an annelid; specifically (Bot.), tipped with a bristle..
Manus :: Manus (n.) The distal segment of the fore limb, including the carpus and fore foot or hand..
Chlorophane :: Chlorophane (n.) The yellowish green pigment in the inner segment of the cones of the retina. See Chromophane.
Hypobranchial :: Hypobranchial (a.) Pertaining to the segment between the basibranchial and the ceratobranchial in a branchial arch.
Procerite :: Procerite (n.) The segment next to the flagellum of the antennae of Crustacea.
Spheromere :: Spheromere (n.) Any one of the several symmetrical segments arranged around the central axis and composing the body of a radiate anmal.
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