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Look up surd in Wiktionary, the free dictionary.
Surd may refer to:
Mathematics
edit- Surd (mathematics), an unresolved root or sum of roots
- Radical symbol, the notation for a root
- formerly, an irrational number in general
Other uses
edit- Surd, Hungary
- Voiceless consonant, opposed to sonant
- Jeremiah Surd, a character on the television series The Real Adventures of Jonny Quest