(mathematics) Of a polynomial expression, involving only the zeroth, second, and fourth powers of a variable, as x⁴ + 3x² + 2. Sometimes extended to any expression involving the biquadrate or fourth power (but no higher powers), as x⁴ − 4x³ + 3x² − x + 1.
noun
(mathematics) A biquadratic equation.
conquerable
conquerable
adj
Capable of being conquered or subdued.
macabresque
quadribasic
quadribasic
adj
(chemistry) tetrabasic
quarterback
quarterback
noun
(American football, Canadian football) An offensive back whose primary job is to pass the ball in a play.
(American football, historical) An offensive back who receives the snap (hike) and then blocks the defense from crossing the line of scrimmage; a blocking back.
(rugby football, historical) A position just behind the forwards, or one who plays this position.
verb
(American football) To play the position of quarterback.
(by extension) To lead a team or group; to be primarily responsible for some group project or activity.
quebrachine
quebrachine
noun
An alkaloid, probably identical to yohimbine, from the quebracho tree
quebrachite
racquetball
racquetball
noun
(countable) A ball used for this sport.
(uncountable) A certain sport, similar to squash, but played with a bigger ball.
