Definition of Betamax in English:

Betamax

Line breaks: Beta|max
Pronunciation: /ˈbiːtəmaks
 
/

noun

[mass noun] ( • trademark in the US)
  • A format for video recorders, now largely obsolete.
    More example sentences
    • In 1976, movie studios sued Sony over its Betamax videotape recorder, claiming it facilitated piracy.
    • Until recently, I thought electronic books were sharing a graveyard with eight-track tapes, Betamax video recorders and record players.
    • Sony's Betamax video tape recorder, which famously lost the 1980s video format war but held on for decades as a niche product, will finally be laid to rest after digital formats delivered a death blow…

Origin

1970s: from Japanese beta 'all over' + -max from maximum.

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