cleavage

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cleav·age

 (klē′vĭj)
n.
1. The act of splitting or cleaving.
2. The state of being split or cleft; a fissure or division.
3. Mineralogy The splitting or tendency to split of a crystallized substance along definite crystalline planes, yielding smooth surfaces.
4. Embryology
a. The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms. Also called segmentation.
b. Any single cell division in such a series.
5. Chemistry The splitting of a complex molecule, such as a polysaccharide, into simpler molecules.
6. Informal The cleft between a woman's breasts as revealed by a low-cut garment.

cleavage

(ˈkliːvɪdʒ)
n
1. informal the separation between a woman's breasts, esp as revealed by a low-cut dress
2. a division or split
3. (Minerals) (of crystals) the act of splitting or the tendency to split along definite planes so as to yield smooth surfaces
4. (Biology) embryol Also called: segmentation (in animals) the repeated division of a fertilized ovum into a solid ball of cells (a morula), which later becomes hollow (a blastula)
5. (Chemistry) the breaking of a chemical bond in a molecule to give smaller molecules or radicals
6. (Geological Science) geology the natural splitting of certain rocks, or minerals such as slates, or micas along the planes of weakness

cleav•age

(ˈkli vɪdʒ)

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. the tendency of crystals, certain minerals, rocks, etc., to break in preferred directions yielding smooth surfaces (cleav′age planes`).
5. the breaking down of a molecule or compound into simpler structures.
6. the series of cell divisions in mitosis that converts the fertilized egg into blastomeres.
[1810–20]

cleav·age

(klē′vĭj)
1. Geology The breaking of certain minerals along specific planes, making smooth surfaces. These surfaces are parallel to the faces of the molecular crystals that make up the minerals. A mineral that exhibits cleavage breaks into smooth pieces with the same pattern of parallel surfaces regardless of how many times it is broken. Some minerals, like quartz, do not have a cleavage and break into uneven pieces with rough surfaces.
2. Biology In an embryo, the series of cell divisions by which a single fertilized egg cell becomes a many-celled blastula.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cleavage - the state of being split or cleftcleavage - the state of being split or cleft; "there was a cleavage between the liberal and conservative members"
state - the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"
2.cleavage - the breaking of a chemical bond in a molecule resulting in smaller molecules
chemical action, chemical change, chemical process - (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
3.cleavage - (embryology) the repeated division of a fertilised ovumcleavage - (embryology) the repeated division of a fertilised ovum
embryology - the branch of biology that studies the formation and early development of living organisms
cell division, cellular division - the process in reproduction and growth by which a cell divides to form daughter cells
maternity, pregnancy, gestation - the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
4.cleavage - the line formed by a groove between two parts (especially the separation between a woman's breasts)
region, area - a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region"
5.cleavage - the act of cleaving or splitting
division - the act or process of dividing

cleavage

noun
A usually narrow partial opening caused by splitting and rupture:
Translations
إنْفِلاع بين ثَديَي المرأهفَلْق، انْشِقاق
dekoltprasklinarýha mezi ňadryštěpeníštěpnost
kløftkløvningspaltningkavalérgang
DekolleteeFurchungKluftSchieferungSpaltneigung
dekoltázshasítás
klofningur
décolletésplijten
záňadrie
böl mememeler arasındaki olukyar ma

cleavage

[ˈkliːvɪdʒ] N
1. (= division, split) → escisión f, división f
2. [of woman] → escote m

cleavage

[ˈkliːvɪdʒ] n [woman] → décolleté m; [dress] → décolleté m
cleave to
[ˈkliːv] [cleaved or clove] (pt) vtrester fidèle à qch/qn

cleavage

n
(= split)Spalte f, → Kluft f (geh); (fig)Spaltung f, → Kluft f
(of woman’s breasts)Dekolletee nt, → Dekolleté nt

cleavage

[ˈkliːvɪdʒ] ndécolleté m inv

cleave1

(kliːv) past tense cleft (kleft) cleaved, ~clove (klouv) : past participles cleft, ~cloven (ˈklouvn) verb
to split or divide.
ˈcleavage (-vidʒ) noun
1. the act of splitting; a split.
2. the split between a woman's breasts.
ˈcleaver noun
a butcher's knife.
cloven hoof, cleft hoof
a hoof, like those of cows, sheep etc, which has a split up the centre.
References in classic literature ?
But as the last two days had been very warm, like an Indian summer, the ice was not now transparent, showing the dark green color of the water, and the bottom, but opaque and whitish or gray, and though twice as thick was hardly stronger than before, for the air bubbles had greatly expanded under this heat and run together, and lost their regularity; they were no longer one directly over another, but often like silvery coins poured from a bag, one overlapping another, or in thin flakes, as if occupying slight cleavages.
Well then, for this cleavage from top to bottom," continued Master Pedro, taking up the split Emperor Charlemagne, "it would not be much if I were to ask five reals and a quarter.
I had matches with me, and in the light of one I found a small cavern with a flat roof and floor which followed the cleavage of the strata.
Now she was identified with him and rethought his thoughts with complete self-surrender; now, with a sudden cleavage of spirit, she turned upon him and denounced him for his cruelty.
The face was not unlike that of a satyr; there was the same slightly protruding forehead, full, in this case, of prominences, all more or less denoting character; the same turned-up nose, with a sprightly cleavage at the tip; the same high cheek-bones.
The Slot was the metaphor that expressed the class cleavage of Society, and no man crossed this metaphor, back and forth, more successfully than Freddie Drummond.
I have never heard of any other instance of table-land in a formation of quartz, and which, in the hill I examined, had neither cleavage nor stratification.
In vitro observations are excluded, and no precise data have been obtained about the duration of the successive cleavages.
PARTY COALITIONS AND CLEAVAGES IN THE AMERICAN STATES
Under UV light, those fractures showed up as many minute cleavages, all ringed with blue light.
And while stars such as Jordan and Jodie Marsh feature in the top 10 cleavages, the study claims to prove that size isn't everything.
At 26 hpf, the boundary formed at sixth cleavage has become more distinct, as cells have moved into the blastoderm; and pairs or small clusters of sister blastomeres formed during earlier cleavages radiate around the blastoderm.