In phonetics, downdrift is the cumulative lowering of pitch over time due to interactions among tones, called downstep, in a tonal language. It is distinct from the general lowering of the pitch during prosodic contours of a tonal or non-tonal language. Two basic types of downdrift are found. In one, called discrete downdrift, when downstep occurs...
Found on
http://en.wikipedia.org/wiki/Downdrift
The direction of predominant movement of littoral materials.
Found on
https://www.encyclo.co.uk/local/20127
No exact match found.
