**surd** — SURD, Ă, surzi, de, adj. 1. (Adesea substantivat) Care nu aude (bine), lipsit (total sau parţial) de auz. ♦ fig. Care nu vrea să audă, să înţeleagă; neînduplecat, nesimţitor, fără suflet. ♢ loc. adv. (Substantivat) De( a) surda = în zadar,… … Dicționar Român

**Surd** — Surd, n. (Math.) 1. A quantity which can not be expressed by rational numbers; thus, [root]2 is a surd. [1913 Webster] 2. (Phon.) A surd element of speech. See {Surd}, a., 4. [1913 Webster] … The Collaborative International Dictionary of English

**Surd** — Surd, a. [L. surdus deaf (whence the meaning, deaf to reason, irrational), perhaps akin to E. swart. Cf. {Sordine}.] 1. Net having the sense of hearing; deaf. [Obs.] A surd . . . generation. Sir T. Browne. [1913 Webster] 2. Unheard. [Obs.]… … The Collaborative International Dictionary of English

**Surd** — may be:* A voiceless consonant * An unresolved mathematical expression of an nth root, or an irrational number that can be expressed as such a root of a rational number * Surd, Hungary, a village in Zala county, Hungary * Surd evil is another… … Wikipedia

**surd** — [sʉrd] adj. [L surdus, deaf, dull, mute: used to transl. Gr alogos, irrational, lit., without reason] 1. Math. IRRATIONAL 2. Phonet. VOICELESS (adj. 6) n 1. an irrational number or quantity; specif., a root which can be expressed only… … English World dictionary

**surd** — 1550s, irrational (of numbers), from L. surdus unheard, silent, dull, possibly related to susurrus a muttering, whispering (see SUSURRATION (Cf. susurration)). The mathematical sense is from the use of L. surdus to translate Arabic (jadhr) asamm… … Etymology dictionary

**surd** — ► NOUN 1) Mathematics a number which is not expressible as a ratio of two whole numbers. 2) Phonetics a speech sound uttered with the breath and not the voice (e.g. f, k, p). ORIGIN from Latin surdus deaf, mute … English terms dictionary

**surd** — ab·surd·i·ty; ab·surd·ly; ab·surd·ness; ab·surd·ism; ab·surd; ab·surd·ist; surd; … English syllables

**surd** — adj. & n. adj. 1 Math. (of a number) irrational. 2 Phonet. (of a sound) uttered with the breath and not the voice (e.g. f, k, p, s, t). n. 1 Math. a surd number, esp. the root of an integer. 2 Phonet. a surd sound. Etymology: L surdus deaf, mute … Useful english dictionary

**surd** — /serrd/, adj. 1. Phonet. voiceless (opposed to sonant). 2. Math. (of a quantity) not capable of being expressed in rational numbers; irrational. n. 3. Phonet. a voiceless consonant (opposed to sonant). 4. Math. a surd quantity. [1545 55; < L… … Universalium