Undomesticated animals; wild beasts.

of a domestic nature. / (law) applied to domestic animals which can be claimed as their property.

(historical, originally) A sportive quality in Nature to which abnormal forms were formerly ascribed; a supposed capricious act of Nature regarded as the cause and origin of anomalies in a given organism.

From the nature of things; from the nature of the case; from nature; applied to arguments based on observation or experiment, as opposed to pure reason.

The ability of the body to heal itself without intervention.

plural of natural science

Timing sexual intercourse to avoid the time of ovulation (if pregnancy is not wanted) or to fall within that time (if pregnancy is desired).

(category theory) A morphism between a pair of parallel functors such that if each object of the shared domain category subtends a correlated arrow — called a component — in the shared codomain (which arrow represents the difference between applying the second functor and the first functor to the correlated object) then each arrow of the shared domain subtends a commuting square — called a naturality square — between two components (correlated to the domain and codomain of the arrow).

An organic fiber that is obtained naturally, notably from a plant or animal.

An area of land that is managed in order to conserve wildlife or plant habitat or other natural features.