oil hole
noun
A small hole in a machine through which oil can be passed for lubricating.
Origin
Mid 19th century.
- tradesman's entrance
- tradesmanship
- tradesman's token
- tradesmen's door
- tradesmen's entrance
- tradesmen's token
- trade something in
- trade something off
- tradesperson
- trades union
- Trades Union Congress
- trades unionise
- trades unionist
- trades unionize
- trade surplus
- trades waste
- tradeswoman
- trade term
- trade test
- trade token
- trade union
- trade union congress
- trade unionese
- trade unionise
- trade unionism