microgroove

[mahy-kruh-groov]

noun

1. a needle groove so narrow that over 200 can be cut in an inch of playing surface on a long-playing record.

microgroove

/ ˈmaɪkrəʊˌɡruːv /

noun

1. 1. the narrow groove in a long-playing gramophone record

   2. ( as modifier )

      a microgroove record

Word History and Origins

Origin of microgroove¹

First recorded in 1945–50; micro- + groove

Example Sentences

Those shapes are constructed from soft 304 stainless steel and feature a milled microgroove face pattern designed to promote a more efficient roll and a softer feel.

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It was only with the development of microgroove technology after World War II that a new generation of cutting head came into use.

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The heavy, folded kraft paper used to protect 78 r.p.m. records left marks on the vinyl microgroove when 33 1/3 r.p.m.

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But the children's market still offers more than a few moments of genuine magic on microgroove.

Read more on Time Magazine Archive

While in the early days of the microgroove decade the 45-r.p.m. disk was the major vehicle for pop singers, all of the more imaginative pop and show tunes are now recorded on LPs.

Read more on Time Magazine Archive