Definition of Fastext in English:

Fastext

noun

mass noun
  • A facility in certain televisions to store some teletext pages in advance, displaying them instantly when requested by the user.

    • ‘In the 1980s, a further extension called Fastext became available.’

Origin

Late 20th century: contraction of fast teletext.

Pronunciation

Fastext

/ˈfɑːstɛkst/