Look up T-ray or terahertz radiation in Wiktionary, the free dictionary.
Terahertz radiation is electromagnetic waves within the ITU-designated band of frequencies from 0.1 to 30 terahertz.
T-ray may also refer to:
- T-Ray (comics), a fictional Marvel Comics character, Nemesis to Deadpool
- T-Ray (producer) (aka Todd Ray), music producer