A process for toughening self-hardening steel by heating and cooling it to various temperatures in molten lead, oil, and air.

plural of Chinese white dolphin

A baiji (†Lipotes vexillifer). / A subspecies of the Indo-Pacific humpback dolphin (Sousa chinensis chinensis), of the Pearl River Delta, which become whitish pink coloured as they age.

(Australia, informal) Qantas airline.

(UK) Any of several old English villages characterised by timbered and half-timbered houses with black oak beams and white walls.

plural of black and white village

(biology) A screening technique for the rapid detection of recombinant bacteria in vector-based molecular cloning experiments. DNA of interest is ligated into a vector, which is then inserted into a host cell; these are grown in the presence of X-gal. Cells transformed with vectors containing recombinant DNA will produce white colonies; cells transformed with non-recombinant plasmids (i.e. only the vector) grow into blue colonies.

Synonym of white arsenic

plural of American white birch

plural of white Christmas slice