plural of cyma reversa

(architecture) A cyma (moulding) convex in its upper part, and concave in its lower part.

A form of joke that reverses the subject and object of an ordinary statement, claiming to describe the situation in Soviet Russia, e.g. "In Soviet Russia, television watches you!"

Alternative form of reversible

The condition of being reversable

Any of several reversals in the polarity of the Earth's magnetic field (such that a compass points South) that have happened over geologic time.

(mathematics) an operation that transforms a physical system undergoing a sequence of events into one in which the events take place in the reverse sequence / (physics) T-symmetry

Intended to reverse; implying reversal.

(philosophy, theology) Of or pertaining to reversalism or to reversalists.

(philosophy, theology) A supporter of the idea of reversalism.