A war fought using nuclear (fission and/or fusion) weapons.

(euphemistic, usually childish) Feces; the act of defecation. / (nautical, slang) A first mate. / A primary assistant; vice-leader.

(graph theory) The smallest number of colours needed to colour a given graph (i.e., to assign a colour to each vertex such that no two vertices connected by an edge have the same colour).

The hard-shelled edible seed of the macadamia tree.

(genetics) A DNA sequence, 1000 nucleotides (or synonymously base pairs) in length or longer, that is present a variable number of times as copies in a genome relative to a reference genome.

(mathematics) a positive integer

(library science) An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library.

(cytology) A conspicuous, rounded body within the nucleus of a cell.

plural of abstract number

A threaded fastener secured by a press fit into one of the pieces to be joined. Frequently used in sheet metal designs when a material is too thin to tap threads.