Gizmo Definition

gizmō
gismos, gizmos
noun
gizmos
A mechanical device or part whose name is forgotten or unknown; a gadget.
American Heritage
Any gadget or contrivance.
Webster's New World

A nonsensical placeholder name for something, generally a device, that one does not know the proper term for; gadget; whatchamacallit; thingamajig.

Wiktionary

Other Word Forms of Gizmo

Noun

Singular:
gizmo
Plural:
gizmos

Origin of Gizmo

  • Origin unknown

    From American Heritage Dictionary of the English Language, 5th Edition

  • Unknown

    From Wiktionary

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gizmo