pit frame
noun
The framework at the top of a mine shaft supporting the pulley.
Origin
Mid 18th century.
- instruction sheet
- instructive
- instructively
- instructiveness
- instructor
- instructorship
- instructress
- instrument
- instrumental
- instrumental conditioning
- instrumentalism
- instrumentalist
- instrumentality
- instrumentally
- instrumentation
- instrument board
- instrument panel
- insubordinate
- insubordinately
- insubordination
- in substance
- insubstantial
- insubstantiality
- insubstantially
- in succession