Surd

Template:Sister project 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