Surd

Pronunciation

• RP enPR: sûd, IPA: /sɜːd/
• US enPR: sûrd, IPA: /sɝd/
• Rhymes: -ɜː(r)d

Origin

Latin surdus ("deaf"); in mathematical sense, "deaf to reason", i.e. irrational.

Full definition of surd

Noun

1. (arithmetic) An irrational number, especially one expressed using the √ symbol.
2. (linguistics) A voiceless consonant.

Adjective

1. (obsolete) Lacking the sense of hearing; deaf.
• Sir Thomas Browna surd ... generation
2. (obsolete) unheard
3. (math) Involving surds, or irrational numbers; not capable of being expressed in rational numbers.a surd expression or quantity; a surd number
4. (phonetics) unvoiced; voiceless

Anagrams

• Urds