English definition
An electronic component that stores and releases electric charge.
Yoruba definition
Ẹ̀yà ẹ̀rọ tó ń pa àṣẹ oníṣẹ́-ẹ̀rọ mọ́, tó sì ń tú u jáde.
Example
A capacitor smooths power on a circuit board.
Ẹ̀kì àṣẹ ń mú agbára lórí pátákó ẹ̀rọ dọ́gba.