Dictionary

sleeper cell

sleeper cell

noun

Definition of SLEEPER CELL

:  a terrorist cell whose members work under cover in an area until sent into action

First Known Use of SLEEPER CELL

1968

Browse

Next Word in the Dictionary: sleeper firePrevious Word in the Dictionary: sleeperAll Words Near: sleeper cell
February 27, 2015
rationale Hear it
An explanation or underlying reason
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears