(obsolete) Normality; A state in which most things are normal. / A system of beliefs concerning how one determines what is considered normal.

(medicine) A solution of 0.9% w/v of NaCl, about 300 mOsm/L.

(medicine, slang, UK, derogatory) Peculiar or odd. / (medicine, slang, UK, derogatory) Of a patient, having lesser intellect.

(databases) Any of various forms of a relational database providing criteria for determining a table's degree of vulnerability to logical inconsistencies and anomalies.

plural of normal space

(topology) A regular space with the additional property that for every disjoint pair of closed sets in that space, there is a disjoint pair of open sets which contain the closed sets, respectively.

plural of normal subgroup

(photography) A lens which produces an image similar in detail and angular perspective to the view produced by the human eye, as distinct from a wide-angle lens or a telephoto lens.

(economics) a good for which demand increases when income increases and falls when income decreases but price remains constant, i.e. with a positive income elasticity of demand.

The study of the microscopic structure of living tissue (histology) that is in good health (as opposed to pathological histology which studies that of diseased tissue).