Used other than figuratively or idiomatically: see look, over, shoulder. / (idiomatic) To check obsessively out of excessive caution or fear of a perceived danger.

(physics) A pair of electrons (or other fermions), of opposite spin, whose theorised behaviour is the basis of the BCS theory of superconductivity.

Alternative form of Taiye Lake

A simple, flexible doll used in Waldorf education to encourage imagination and creative play.