Rubik's Cube

plural of Master Cube

Rubik's Revenge

(chess) The checkmate which occurs shortly after the opening, when the white queen checkmates by taking the black pawn on f7 (or the black queen taking the white pawn on f2), protected by a bishop on c4 (or c5).

A drawing of human anatomy created by Leonardo da Vinci around the year 1487, or a representation of it.

A schematic map of the human tongue, labelling which parts are (supposedly) receptive to different tastes.

The marriage (union) of two people planned by someone other than the two people who are united in it.

(vulgar slang, of men) To urinate.

A cisgender man.

(physics) Mass and energy as a unified concept. / (also spelled mass energy) The energy associated with any given mass according to special relativity, E = mc².