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.

From Golf Digest

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

From Los Angeles Times

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.

From New York Times

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

From 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.

From Time Magazine Archive