crankcase

noun

crankcase

noun

Etymology From crank + case.

1

The part of an engine that contains the crankshaft.

The crankcase itself is in one piece, in the form of a tunnel into which the crankshaft is introduced from one end.1960 January, “The Swindon Type "4" diesel-hydraulic units”, in Trains Illustrated, page 41:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.