'Enneatical day' definitions:

Definition of 'Enneatical day'

From: GCIDE
  • Enneatic \En`ne*at"ic\, Enneatical \En`ne*at"ic*al\, a. [Gr. 'enne`a nine.] Occurring once in every nine times, days, years, etc.; every ninth. [1913 Webster]
  • Enneatical day, every ninth day of a disease.
  • Enneatical year, every ninth year of a man's life. [1913 Webster]