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

plural of cyma reversa

(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

The state of being reversed. / An instance of reversing. / A change in fortune; a change from being successful to having problems.

Intended to reverse; implying reversal.

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.

A therapy or process which reverses the physiological aging process.

plural of reversal

plural of time reversal

(grammar) Implying a reversal.