| 释义 |
Definition of surd in English: surdadjective səːdsərd 1Mathematics
(of a number) irrational. 2Phonetics
(of a speech sound) uttered with the breath and not the voice (e.g. f, k, p, s, t).
noun səːdsərd 1Mathematics
A surd number, especially the irrational root of an integer. Example sentencesExamples - In the conventional school education in India, we are asked to do some problems involving surds (radicals).
- They were learning about surds in maths, supposedly one of the hardest subjects.
- I don't care about rationalising denominators with surds in them, and I don't care that by using maths induction you can prove many equations to be right or wrong.
2Phonetics
A surd consonant.
Origin Mid 16th century: from Latin surdus 'deaf, mute'; as a mathematical term, translating Greek (Euclid) alogos 'irrational, speechless', apparently via Arabic jiḏr aṣamm, literally 'deaf root'. sense 2 of the adjective dates from the mid 18th century. Definition of surd in US English: surdadjectivesərdsərd 1Mathematics
(of a number) irrational. 2Phonetics
(of a speech sound) uttered with the breath and not the voice (e.g. f, k, p, s, t).
nounsərdsərd 1Mathematics
A surd number, especially the irrational root of an integer. Example sentencesExamples - I don't care about rationalising denominators with surds in them, and I don't care that by using maths induction you can prove many equations to be right or wrong.
- They were learning about surds in maths, supposedly one of the hardest subjects.
- In the conventional school education in India, we are asked to do some problems involving surds (radicals).
2Phonetics
A surd consonant.
Origin Mid 16th century: from Latin surdus ‘deaf, mute’; as a mathematical term, translating Greek (Euclid) alogos ‘irrational, speechless’, apparently via Arabic jiḏr aṣamm, literally ‘deaf root’. surd (sense 2 of the adjective) dates from the mid 18th century. |