Any of a set of angles whose sum is 360° or 2π radians.

extramarital

Either of a pair of mirrors set face to face so that the rays emitted from the focus of one are first reflected from it to the other and thence to its focus.

plural of conjugate mirror

(mathematics) The unary operation which maps complex numbers to their complex conjugates.

(geometry) Either of two axes in a conic section, such that each is parallel to the tangent at the extremity of the other.

plural of conjugate axis

(electrochemistry) An electron donor and its corresponding electron acceptor form.

plural of conjugate redox pair

(chemistry) An acid and a base which differ by a single proton; a pair of molecular compounds consisting of a conjugate acid and a conjugate base.