English
Etymology
From up- + drift.
Pronunciation
Noun
updrift (plural updrifts)
- (phonetics) A rising (over time) of the pitch of the tones of a tonal language.
Adverb
updrift (not comparable)
- On the upward side of a drift.
A groyne promotes the build-up of sediment on its updrift side, and reduces erosion on the downdrift side.