sump
Concise Oxford English Dictionary © 2008 Oxford University Press:
sump/sʌmp/
▶noun
- 1 the base of an internal-combustion engine, which serves as a reservoir of oil for the lubrication system.
- 2 a depression in the floor of a mine or cave in which water collects.
- 3 a cesspool.
– origin ME (in the sense ‘marsh’): from MDu. or Low Ger. sump, or (in the mining sense) from Ger. Sumpf; rel. to swamp.
'sump' also found in these Oxford entries:
