Subscriber login
Password
Forgot your password?
Library card login
Login with Shibboleth® »
Login with Athens »
Close menu
Oxford Dictionaries Online
The world's most trusted dictionaries
About
Subscriber services
What's new
Contact us
Help
Subscribe now
Already a subscriber or in a subscribing organization?
Login
Dictionary
Other language resources
US English
World English
Dictionary
Better writing
World of words
Puzzles and games
For children and schools
For learners of English
Email
Cite
theta rhythm
(theta rhythm)
noun
[
mass noun
]
Physiology
electrical activity observed in the brain under certain conditions, consisting of oscillations (
theta waves
) with a frequency of 4 to 7 hertz.
Nearby Words
thesp
thespian
Thespis
Thess.
Thessalonians, Epistle to the
Thessalonica
Thessaloníki
Thessaly
theta
theta rhythm
theta role
Thetis
theurgy
thew
they
they'd
they'll
they're
they've