(informal) Abbreviation of Proxima Centauri.

(astronomy) A red dwarf star, part of the Alpha Centauri system and the nearest star to Earth's solar system.

Alternative form of Pangaea Ultima

(of causation) Immediately; most directly / (medicine) In the proximal direction: reverse of distally

plural of proximal phalange

(anatomy, geology) Closer to the point of attachment or observation. / (dentistry) Facing toward another tooth. The proximal surfaces of a tooth are those that touch or are close to neighboring teeth.

Any of the phalanx bones of the fingers or toes which are nearest the hand or foot.

(anatomy) Toward a proximal part; on the proximal side of; proximally.

(anatomy) An intricate component of the nephron in a kidney that connects the Bowman's capsule to the loop of Henle.

A concept developed by Soviet psychologist and social constructivist Lev Vygotsky: the difference between what a learner can do without help and what he or she can do with help.