microgroove


microgroove

(ˈmaɪkrəʊˌɡruːv) na. the narrow groove in a long-playing gramophone recordb. (as modifier): a microgroove record.

mi•cro•groove

(ˈmaɪ krəˌgruv)

n. a very narrow spiral needle groove on a long-playing record. [1945–50]
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