Surd
{{wiktionary|surd}}
Surd may refer to:
Mathematics
- Surd (mathematics), an unresolved root or sum of roots
- Radical symbol, the notation for a root
- formerly, an irrational number in general
Other uses
- Surd, Hungary
- Voiceless consonant, opposed to sonant
- Jeremiah Surd, a character on the television series The Real Adventures of Jonny Quest
{{disambiguation}}