a pipe or passage for conducting smoke, a current of air, or the like, to an uptake or downtake.
Origin of offtake
First recorded in 1870–75; after verb phrase take off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for offtake
Historical Examples of offtake
The cliff rose above them, a wall broken here and there by the offtake of narrow ravines, filled with forest trees.Long Live the King
Mary Roberts Rinehart