WordReference Random House Unabridged Dictionary of American English © 2025
di•rect-act•ing
(di rekt′ak′ting, dī-),USA pronunciation adj.
- (of a steam pump) having the steam pistons connected directly to the pump pistons without a crankshaft or flywheel.
- 1855–60
'direct-acting' also found in these entries (note: many are not synonyms or translations):