'Sext' definitions:

Definition of 'sext'

(from WordNet)
noun
The fourth of the seven canonical hours; about noon

Definition of 'Sext'

From: GCIDE
  • Sext \Sext\, n. [L. sexta, fem. of sextus sixtt, fr. sex six: cf. F. sexte.] (R.C.Ch.) (a) The office for the sixth canonical hour, being a part of the Breviary. (b) The sixth book of the decretals, added by Pope Boniface VIII. [1913 Webster]