Abbreviation of subspecies.

(taxonomy) A rank in the classification of organisms, below species.

(BDSM) The psychological state of the submissive or "bottom" during sadomasochistic activity.

(countable, mathematics) A subset of a space which is a space in its own right. / (uncountable, science fiction) Any (often unspecified) method of communicating or travelling faster than light speed.

(taxonomy) pertaining to a subspecies. (See Usage notes.) / (taxonomy) infraspecific. (See Usage notes.)

(zoology) The third word in the scientific name of a subspecies, following the name of the species. This applies only to formal names of animals.

(taxonomy) The third word in the scientific name of a subspecies, following the name of the species, but only in names of bacteria, plants and fungi. It is not used in formal names of animals.

plural of subspace

A specialty within a specialty.

(physics) Any of a number of spectra of components of a mixture that together make an observed spectrum