brainwave

Từ điển Oxford Advanced Learner 8th

brain·wave [brainwave brainwaves] BrE [ˈbreɪnweɪv] NAmE [ˈbreɪnweɪv] noun
1. (NAmE also brain·storm)a sudden good idea
•I've had a brainwave!
2. an electrical signal in the brain
See also: ↑brainstorm