Definition of terce in English:

terce

noun

  • A service forming part of the Divine Office of the Western Christian Church, traditionally said (or chanted) at the third hour of the day (i.e. 9 a.m.).

    • ‘The Order of Service for Noonday may be used (with appropriate choices from the options for lessons and collects) for terce, sext, or none.’

Origin

Late Middle English: from Old French, from Latin tertia, feminine of tertius third. Compare with tierce.

Pronunciation

terce

/təːs/