an assemblage of parts that is regarded as a single entity | a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists |
a single undivided whole | |
an organization regarded as part of a larger social group | |
a single undivided natural thing occurring in the composition of something else | |
any division of quantity accepted as a standard of measurement or exchange | |
an individual or group or structure or other entity regarded as a structural or functional constituent of a whole | |