surd
surd is defined in Webster's Unabridged Dictionary (1913) with 5 senses, and appears in Roget's Thesaurus (1911) with 27 related terms. The full text of each entry is reproduced verbatim below.
Definitions
- 1.Unheard. [Obs.] Kenrick.
- 2.(Math.) Involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number.
- 3.(Phonetics) Uttered, as an element of speech, without tone, or proper vocal sound; voiceless; unintonated; nonvocal; atonic; whispered; aspirated; sharp; hard, as f, p, s, etc.; -- opposed to sonant. See Guide to Pronunciation, §§169, 179, 180.
- 4.A quantity which can not be expressed by rational numbers; thus, *2 is a surd.
- 5.(Phon.) A surd element of speech. See Surd, a., 4.
Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
Synonyms
Related questions
Reverse-dictionary questions
Definition-first questions whose answer is surd.
- What is involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number called?
- What is a quantity which can not be expressed by rational numbers; thus, *2 is a surd called?
- What is a surd element of speech. See Surd, a., 4 called?
Sources
- Definitions: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
- Synonyms: Roget's Thesaurus, 1911 edition (public domain, via Project Gutenberg eBook #10681).
- Canonical URL: https://worddirectanswers.com/word/surd
- Steward: Jason Burns