cleavage cells
The cells formed during cleavage; a blastomere.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • cleavage — 1. Series of mitotic cell divisions occurring in the ovum immediately following its fertilization. SYN: segmentation (2). SEE ALSO: c. division. 2. Splitting of a complex molecule into two or more simpler molecules. SYN: scission (2). 3 …   Medical dictionary

  • Cleavage — may refer to: Cleavage (breasts), partial exposure of the separation between a woman s breasts. Cleavage enhancement, methods of making a person s breast cleavage look more substantial than it really is. Buttock cleavage, minor exposure of the… …   Wikipedia

  • Cleavage — Cleav age, n. 1. The act of cleaving or splitting. [1913 Webster] 2. (Crystallog.) The quality possessed by many crystallized substances of splitting readily in one or more definite directions, in which the cohesive attraction is a minimum,… …   The Collaborative International Dictionary of English

  • Cleavage (embryo) — In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote. The different cells derived …   Wikipedia

  • cleavage — /klee vij/, n. 1. the act of cleaving or splitting. 2. the state of being cleft. 3. the area between a woman s breasts, esp. when revealed by a low cut neckline. 4. a critical division in opinion, beliefs, interests, etc., as leading to… …   Universalium

  • Cleavage furrow — In this electron micrograph of a cell, the cleavage furrow has nearly completely divided the cell …   Wikipedia

  • cleavage — n. (in embryology) the process of repeated cell division of the fertilized egg to form a ball of cells that becomes the blastocyst. The cells (blastomeres) do not grow between divisions and so they decrease in size …   The new mediacal dictionary

  • cleavage stages — initial stages in embryonic development where divisions of blastomeres are clearly marked. Usually the first through sixth cleavages (2 64 cells) …   Dictionary of ichthyology

  • cleavage — n. [A.S. cleophian, split] The process by which the division of the egg cell gives rise to all the cells of the organism …   Dictionary of invertebrate zoology

  • cleavage nucleus — 1. The nucleus of a fertilized egg cell or zygote. 2. The nucleus of egg cells that develop parthenogenetically …   Dictionary of invertebrate zoology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”