theta
Concise Oxford English Dictionary © 2008 Oxford University Press:
theta /ˈθiːtə/
▶noun the eighth letter of the Greek alphabet (Θ, θ), transliterated as ‘th’. ▶symbol
- 1 (θ) temperature.
- 2 (θ) a plane angle.
- 3 (θ) a polar coordinate. Often coupled with phi (sense 2 of the symbol).
– origin from Gk.
'theta' also found in these Oxford entries:
