/fluy"awf', -of'/ , n.
1. Meteorol. evapotranspiration (def. 1).
2. a competition between aircraft of various manufacturers to establish superior performance, esp. in order to gain a government contract.
[ 1965-70; (def. 1) prob. FLY 1 + (RUN)OFF; (def. 2) FLY 1 + -OFF ]