Browse Dictionary by Letter

Comprehensive
Dictionary Suite
Help
Help
Help
A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z
quantifiable capable of being measured or counted, or of being conceived in terms of amount.
quantify to find or express the quantity of.
quantitative of, concerning, or capable of being measured or expressed as, a quantity. [2 definitions]
quantitative analysis the chemical analysis of a compound or mixture to determine by exact measurement the amounts and percentages of its constituents.
quantity amount or number. [6 definitions]
quantum an irreducible quantity of energy, such as a photon of light. [3 definitions]
quantum jump a sudden change in the energy level of an atom or molecule. [2 definitions]
quantum mechanics (used with a sing. or pl. verb) a theory in physics describing the motion of objects in terms of the principles of quantum theory.
quantum theory a theory in physics that energy radiates or is absorbed in discontinuous quantities, each a multiple of indivisible units or quanta.
quarantine the enforced separation of people, animals, goods, or the like from others, so as to prevent the spread of contagious illness. [4 definitions]
quark any of several elementary particles believed to be components of protons, neutrons, and related particles.
quarrel an angry or bitter disagreement or argument. [4 definitions]
quarrelsome tending to quarrel easily or frequently; bad-tempered; argumentative.
quarrier one who quarries stone.
quarry1 a large open hole or pit dug for mining stone, marble, gravel, or the like. [3 definitions]
quarry2 an animal hunted for food or sport. [2 definitions]
quarry3 something that is in the shape of a square or diamond, esp. a tile or small windowpane.
quarryman see quarrier.
quart in the US, a unit of capacity equal to two pints or 0.9464 liter in liquid measure and two pints or 1.101 liters in dry measure. (abbr.: qt.) [3 definitions]
quarter a fraction equal to one fourth of a whole. [15 definitions]
quarterback in football, the chief offensive player who calls the plays and is the first to receive the ball in most plays. [5 definitions]