plural of pivot operation

(idiomatic) To do something pointless or unnecessary; to try doing something already done.

(physics) Synonym of Hamiltonian

retrospective in effect.

(Internet, marketing) The situation where a subscriber to a newsletter etc. first provides their e-mail address and then receives a confirmation request to that address, requiring them to take further action (such as clicking a hyperlink) to activate the subscription.

To begin operations; to set things in motion.

An elegant cloak for carrying into the auditorium of a theatre or opera house as a protection against draughts.

plural of opera cloak

plural of open verdict

A verdict upon an inquest which finds that a crime has been committed without specifying the criminal.