(n): the way something is with respect to its main attributes
(n): the breaking of a chemical bond in a molecule resulting in smaller molecules
(n): (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
(n): (embryology) the repeated division of a fertilised ovum
(n): the process in reproduction and growth by which a cell divides to form daughter cells
(n): the line formed by a groove between two parts (especially the separation between a woman's breasts)
(n): a part of an animal that has a special function or is supplied by a given artery or nerve
(n): the act of cleaving or splitting
(n): the act or process of dividing
The only word that is its own antonym.