verb (undulat, ing)
- (transitive) To cause to move in a wavelike motion.
- (transitive) To cause to resemble a wave
- (intransitive) To move in wavelike motions.
- (intransitive) To appear wavelike.
- wavy, Wavy in appearance or form.
- Changing the pitch and volume of one's voice.
Etymology: From the unda "wave" via Middle and Late Latin.
- (botany, of a margin) wind, Winding up and down gradually relative to the blade.
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Full Definition of undulate