run-in groove
noun
The blank groove at the beginning or (occasionally) end of each side of a gramophone record.
Origin
1950s; earliest use found in Compton Mackenzie (1883–1972), writer.
- working floor
- working force
- working gear
- working girl
- working group
- working heat
- working hole
- working holiday
- working hour
- working life
- working load
- working majority
- workingman
- working memory
- working model
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- working out
- working-over
- working paper
- working partner
- anisopteran
- anisotropic
- anisotropically
- anisotropy
- an itching palm