Dictionary definition · rattle
noun
- a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)"the death rattle"
- a baby's toy that makes percussive noises when shaken
- loosely connected horny sections at the end of a rattlesnake's tail
verb
- make short successive sounds
- shake and cause to make a rattling noise
Source: Open English WordNet (CC BY 4.0).