(figuratively, slang, hyperbolic) Any very large number, exceeding normal description.

A quail of North America (of the US-American southwest and the Mexican northwest), Callipepla gambelii.

square-shaped / (mathematics) of a polynomial, involving the second power (square) of a variable but no higher powers, as ax²+bx+c. / (mathematics) of an equation, of the form ax²+bx+c=0.

(mathematics) A quadratic polynomial, function or equation.

Of a measurement based on some quantity or number rather than on some quality / (chemistry) Of a form of analysis that determines the amount of some element or compound in a sample

To describe or characterize something by listing its qualities. / To make someone, or to become competent or eligible for some position or task. / To certify or license someone for something.

(juggling) An instance of throwing and catching each prop at least twice.

(geometry) A quadrilateral whose vertices all intersect a single circle.

The act or process of qualifying for a position, achievement etc. / An ability or attribute that aids someone's chances of qualifying for something; specifically, completed professional training.

A laser that operates by analogy with an electronic waterfall, with electrons cascading down a series of small steps emitting a photon at each step.