'Hebdomad' definitions:
Definition of 'hebdomad'
(from WordNet)
noun
Any period of seven consecutive days; "it rained for a week" [syn: week, hebdomad]
Definition of 'Hebdomad'
From: GCIDE
- Hebdomad \Heb"do*mad\, n. [L. hebdomas, -adis, Gr. "ebdoma`s the number seven days, fr. ? seventh, ? seven. See Seven.] A week; a period of seven days. [R.] --Sir T. Browne. Hebdomadal