(law) a contract distinguished by a particular name, such as sale, insurance, or lease.

Alternative form of zero-hour contract

(music) A type of tuba designed for marching. It is preferred by drum corps with large tuba sections because it offers a more rich sound than a sousaphone at the expense of volume.

(music) A stringed instrument of the viol family, a variant of the octobass distinguished by its extreme size -- at more than ten feet all, it must be performed by a person on a platform.

plural of contrast agent

Radiography using a contrast medium.

(physics) Lorentz-Fitzgerald contraction

A system for managing contracts.

plural of sign of contradiction

(theology) In Catholic theology, someone who, upon manifesting holiness, is subject to extreme opposition, traditionally supposed to point to the presence of the divine.