or grandfather clock
- a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
Origin of grandfather's clock
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of various types of long-pendulum clocks in tall standing wooden cases, usually between six and eight feet tallAlso called: longcase clock