(mathematics) The operation of finding a cube having a volume which is double that of a given cube.

diphallia

plural of duplication of the cube

(genetics) A form of polyploidy in which an organism has duplicate copies of its entire genome

plural of whole-genome duplication

(historical, printing) An early document copier using alcohol-based solvents.

The commonest variation of contract bridge in club and tournament play, in which the same deal of cards is played at each table and scoring is based on relative performance.

A form of the board game Scrabble where an announcer draws a set of letters and announces them to the players in the room who all draw the same seven letters, and all players play from the same board position with the same letters.

plural of spirit duplicator

A mimeograph (machine).