Found 2 items, similar to hebdomad.
English → English (WordNet) Definition: hebdomad hebdomad n : any period of seven consecutive days; “it rained for a week” [syn: week]
English → English (gcide) Definition: Hebdomad 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.