Found 2 items, similar to instroke.
English → English (WordNet) Definition: instroke instroke n : the stroke of an engine piston moving away from the crankshaft
English → English (gcide) Definition: Instroke Instroke \In"stroke`\, n. An inward stroke; specif., in a steam or other engine, a stroke in which the piston is moving away from the crank shaft; -- opposed to outstroke. [Webster 1913 Suppl.]