grandfather's clock
or grandfather clock
noun
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
Words nearby grandfather's clock
grandeur,
grandfather,
grandfather clause,
grandfather clock,
grandfather's chair,
grandfather's clock,
grandfatherly,
grandgent,
grandiflora,
grandiloquence,
grandiloquent
British Dictionary definitions for grandfather clock
grandfather clock
noun
any of various types of long-pendulum clocks in tall standing wooden cases, usually between six and eight feet tall
Also called: longcase clock