1. (noun) cleavage
the state of being split or cleft
Synonyms: segmentation
2. (noun) cleavage
the breaking of a chemical bond in a molecule resulting in smaller molecules
Synonyms: segmentation
3. (noun) cleavage, segmentation
(embryology) the repeated division of a fertilised ovum
Synonyms: cleavage, division, sectionalization, segmentation, partitioning, sectionalisation, partition
4. (noun) cleavage
the line formed by a groove between two parts (especially the separation between a woman's breasts)
Synonyms: segmentation
5. (noun) cleavage
the act of cleaving or splitting
Synonyms: segmentation
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