Related Words

Quad: A room suitable for four persons.

Quadratic Programming: Variant of linear programming in which the objective function is quadratic rather than linear. In portfolio selection, we often minimize the variance of the portfolio (which is a quadratic f . . . View Full Definition

Ununquadium (Uuq): Atomic number: 114, Atomic mass: 289 g.mol -1, Electronegativity acoording to Pauling: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, . . . View Full Definition

Quadrant: One of the four sections of a horoscope, each bounded by two angles not opposite each other.

Quadrat: An ecological sampling unit that consists of a square frame of known area. The quadrat is used for quantifying the number or percent cover of a given species within a given area. See also transect.

Quads: Abbreviation for quadriceps femoris muscles, muscles on the upper part of the front of the legs, which consist of four parts (heads).

Quadrature Phase-Shift Keying (QPSK): A method of modulating digital signals using four phase states to code two digital bits per phase shift.

Quadrature Of Moon: Position of the Moon when its longitude differs by 90° from the longitude of the Sun. The corresponding phases are known as first quarter and last quarter.

Quadraplane: An aircraft having four or more wingforms.

Quad Lnbf: A combination LNBF and multi-sat switch component for DISH 500 systems can accommodate up to 4 DISH Network receivers.