(officialese, law) A drug or chemical whose use, possession, manufacture, or sale is regulated or banned by the government.

(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.

The state of being subservient.

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

(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.

Of inferior quality; not meeting the minimum quality requirements. / (linguistics, dated) Not conforming to the standard variety; nonstandard.

The process of becoming less active or severe.

A site where electricity supplied by long-distance (high-voltage) transmission lines is transformed and/or regulated for local (low-voltage) distribution.

(telecommunications) A communications system characterised by moderately high speeds, different in each direction.

(grammar) Of or pertaining to a substantive. / Of or relating to physical substance; material.