The part of something that faces out; the outer surface. / The external appearance of someone or something. / The space beyond some limit or boundary.

(sociology) According to Jean Baudrillard, the excessive and formalized practice of an established system, used as a liberating strategy to disrupt the system.

(pharmacology) A human monoclonal antibody and drug candidate designed for treatment of Alzheimer's disease.

A particular steroid glycoside found in Dregea species.