Asks the interlocutor to give their phone number for subsequent communication.

(physics) The number of neutrons or protons in nuclei which are required to fill the major quantum shells, and thus produce exceptionally stable nuclei: 2, 8, 20, 28, 50, 82 and 126.

A nominal fee, fine or penalty charged to deter an action (rather than to compensate for the costs of that action).

(physics) The unit of magnetic moment used to describe nucleons such as the proton.

A number used without application to things, e.g. 6, 8, 10; but when applied to anything, e.g. 6 feet, 10 men, it becomes concrete.

(colloquial, derogatory) Someone who is crazy (insane).

(astronomy) A catalogue number used to identify any one of more than one hundred galaxies, nebulae, and other deep-sky objects visible in the night sky; the designation formed by the surname Messier or letter M being prepended to the number, as in Messier 31 or M31 (the Andromeda Galaxy).

(medicine) a cataract that affects just the dense inner part of the lens

the explosion of a nuclear weapon at such an altitude that the fireball remains above the ground

A limited-yield nuclear weapon delivered using an artillery shell.