| ACQUISITORS | • acquisitors n. Plural of acquisitor. • ACQUISITOR n. one who makes an acquisition. |
| AQUAEROBICS | • aquaerobics n. Synonym of water aerobics. • AQUAEROBICS n. a system of exercises, similar to aerobics, performed to music in chest-high water, also AQUAROBICS. |
| AQUAFORTIST | • aquafortist n. One who prepares etchings or engravings using aqua fortis. • AQUAFORTIST n. an etcher or engraver who uses aquafortis. |
| EQUATORIALS | • equatorials n. Plural of equatorial. • EQUATORIAL n. an equatorial telescope. |
| LIQUIDATORS | • liquidators n. Plural of liquidator. • LIQUIDATOR n. one that liquidates. |
| MICROQUAKES | • microquakes n. Plural of microquake. • MICROQUAKE n. a very small earthquake. |
| QUADRASONIC | • quadrasonic adj. Quadraphonic. • QUADRASONIC adj. relating to a system of sound recording and reproduction that uses four independent loudspeakers to give directional sources of sound. |
| QUADRICONES | • quadricones n. Plural of quadricone. • QUADRICONE n. a quadric cone, or cone having a conic as base. |
| QUADRIPOLES | • quadripoles n. Plural of quadripole. • QUADRIPOLE n. a network with two input and two output terminals. |
| QUAESTORIAL | • quaestorial adj. Of or relating to a quaestor. • QUAESTORIAL adj. relating to the office of quaestor, also QUESTORIAL. |
| QUARTATIONS | • quartations n. Plural of quartation. • QUARTATION n. mixing one part gold with three parts silver prior to purifying it. |
| QUATERNIONS | • quaternions n. Plural of quaternion. • QUATERNION n. a set or group of four; the operation of changing one vector into another, or the quotient of two vectors. |
| QUATORZAINS | • quatorzains n. Plural of quatorzain. • QUATORZAIN n. a poem of fourteen lines; a sonnet. |
| QUATREFOILS | • quatrefoils n. Plural of quatrefoil. • QUATREFOIL n. a four-petalled flower or leaf of four leaflets; an openwork design or ornament divided by cusps into four lobes, also QUATREFEUILLE. |
| QUESTIONARY | • questionary n. A questionnaire. • questionary n. (Archaic) One who makes it his business to seek after relics and carry them about for sale. • questionary adj. Inquiring; asking questions; testing. |
| SQUADRONING | • squadroning v. Present participle of squadron. • SQUADRON v. to organize in divisions of a regiment. |