a labor union that does not impose rigid restrictions on the admission of new members.
noun, Astronomy. 1. a model of the universe in which the universe expands forever because there is not enough mass to counteract the expansion by means of gravitational attraction. open universe Model of the universe in which the curvature of space is flat or curved away from itself, entailing that the size of the universe […]
Trademark. 1. a largely self-instructional university, founded in England in 1969, offering independent education through such means as television, computers, and mailed course materials. noun 1. the Open University, (in Britain) a university founded in 1969 for mature students studying by television and radio lectures, correspondence courses, local counselling, and summer schools
- Open up a can of worms
verb phrase To broach a very complicated and troublesome matter; set something messy in motion: Merit pay? Let’s not open up that can of worms (1962+) Related Terms can of worms
- Open verdict
noun 1. a finding by a coroner’s jury of death without stating the cause