Segmentation
Definition of Segmentation
Seg`men`ta´tion | n. | 1. | (Biol.) 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.| Segmentation of the ovum | | (Biol.) the process by which the embryos of all the higher plants and animals are derived from the germ cell. In the simplest case, that of small ova destitute of food yolk, the ovum or egg divides into two similar halves or segments (blastomeres), each of these again divides into two, and so on, thus giving rise to a mass of cells (mulberry mass, or morula), all equal and similar, from the growth and development of which the future animal is to be formed. This constitutes regular segmentation. Quite frequently, however, the equality and regularity of cleavage is interfered with by the presence of food yolk, from which results unequal segmentation. See Holoblastic, Meroblastic, Alecithal, Centrolecithal, Ectolecithal, and Ovum. |
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Related Words
abstraction, alienation, analysis, analyzation, anatomizing, anatomy, assay, assaying, breakdown, breaking down, breaking up, breakup, detachment, disarticulation, disassociation, disconnectedness, disconnection, discontinuity, disengagement, disjointing, disjunction, dislocation, dissection, disunion, division, divorce, divorcement, docimasy, gravimetric analysis, incoherence, isolation, luxation, parting, partition, proximate analysis, quantitative analysis, reduction to elements, removal, resolution, semimicroanalysis, separation, separatism, subdivision, subtraction, withdrawal, zoning
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Seersucker
Seerwood
Seesaw
seesee partridge
Seet
Seeth
Seethe
Seether
Seg
Segar
Seggar
Segge
Segment
Segment gear
Segment of a line
Segment of a sphere
Segmental
Segmental duct
Segmental organs
Segmental tubes
-Segmentation-
Segmentation cavity
Segmentation nucleus
Segmentation of the ovum
Segmentation sphere
Segmented
Segnitude
Segno
Sego
Segregate
Segregation
Seiches
Seid
Seidlitz
Seidlitz powders
Seidlitz water
Seigh
Seignete's salt
Seigneurial
Seignior
Seigniorage
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