| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| quadrans | noun | A fourth part of the coin called an as. See 3d As, 2., The fourth of a penny; a farthing. See Cur. |
| quadrant | noun | The fourth part; the quarter., The quarter of a circle, or of the circumference of a circle, an arc of 90¡, or one subtending a right angle at the center., One of the four parts into which a plane is divided by the coordinate axes. The upper right-hand part is the first quadrant; the upper left-hand part the second; the lower left-hand part the third; and the lower right-hand part the fourth quadrant., An instrument for measuring altitudes, variously constructed and mounted for different specific uses in astronomy, surveying, gunnery, etc., consisting commonly of a graduated arc of 90¡, with an index or vernier, and either plain or telescopic sights, and usually having a plumb line or spirit level for fixing the vertical or horizontal direction. |
| quadrate | adjective | Having four equal sides, the opposite sides parallel, and four right angles; square., Produced by multiplying a number by itself; square., Square; even; balanced; equal; exact., Squared; suited; correspondent., A plane surface with four equal sides and four right angles; a square; hence, figuratively, anything having the outline of a square., An aspect of the heavenly bodies in which they are distant from each other 90¡, or the quarter of a circle; quartile. See the Note under Aspect, 6., The quadrate bone., To square; to agree; to suit; to correspond; — followed by with., To adjust (a gun) on its carriage; also, to train (a gun) for horizontal firing. |
| quadriga | noun | A car or chariot drawn by four horses abreast. |
| quadroon | noun | The offspring of a mulatto and a white person; a person quarter-blooded. |