Directrix — Di*rect rix, n.; pl. E. {Directrixes}, L. {Directrices}. 1. A directress. [R.] Jer. Taylor. [1913 Webster] 2. (Geom.) (a) A line along which a point in another line moves, or which in any way governs the motion of the point and determines the… … The Collaborative International Dictionary of English
directrix — [də rek′triks; ] also [ dīrek′triks] n. pl. directrixes or directrices [dī΄rek trī′sēz] 1. Rare a woman director 2. Geom. a) a fixed line associated with a conic section and its focus and eccentricity: see PARABOLA b) the curve th … English World dictionary
directrix — noun (plural directrixes; also directrices) Etymology: Medieval Latin, feminine of Late Latin director, from Latin dirigere Date: 1622 1. archaic directress 2. a fixed curve with which a generatrix maintains a give … New Collegiate Dictionary
directrix — /di rek triks, duy /, n., pl. directrixes, directrices /di rek tri seez , duy , duy rek truy seez/. 1. Geom. a fixed line used in the description of a curve or surface. See diag. under parabola. 2. Archaic. a directress. [1615 25; < NL; see… … Universalium
directrix — noun a) A female who directs; a directress. b) A line used to define a curve or surface; especially a line, the distance from which a point on a conic has a constant ratio to that from the focus … Wiktionary
directrix — n. fixed line associated with a parabola or another curve (Geometry); directress di·rec·tor || dɪ rektÉ™ n. manager; stage manager … English contemporary dictionary
directrix — The fixed curve traversed by a generatrix in generating either a cone or a cylinder. (pr. de rek triks) The plural may be either directrixes or directrices … Glossary of Art Terms
directrix — [dɪ rɛktrɪks, dʌɪ ] noun (plural directrices trɪsi:z) Geometry a fixed line used in describing a curve or surface. Origin C18: from med. L., lit. directress … English new terms dictionary
directrix — di·rec·trix … English syllables
directrix — di•rec•trix [[t]dɪˈrɛk trɪks, daɪ [/t]] n. pl. di•rec•trix•es, di•rec•tri•ces [[t]dɪˈrɛk trɪˌsiz, daɪ , ˌdaɪ rɛkˈtraɪ siz[/t]] 1) math. a fixed line used in the description of a curve or surface 2) use archaic directress • Etymology: 1695–1705… … From formal English to slang
