hebdomad

heb·do·mad  (hbd-md)

n.

1. A group of seven.

2. A period of seven days; a week.

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[Latin hebdomas, hebdomad-, the number seven, from Greek, from hebdomos, seventh, from hepta, seven; see sept in Indo-European roots.]

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hebdomad [ˈhɛbdəˌmæd]

n

1. Obsolete the number seven or a group of seven

2. a rare word for week

[from Greek, from hebdomos seventh, from heptas seven]

Thesaurus

Noun

1.

hebdomad - any period of seven consecutive days; "it rained for a week" week period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period" calendar day, civil day - a day reckoned from midnight to midnight day of the week - any one of the seven days in a week week from Monday - a time period of a week or more; "a week from Monday will be too soon!" weekend - a time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one Sunday rag week, rag - a week at British universities during which side-shows and processions of floats are organized to raise money for charities Holy Week, Passion Week - the week before Easter shibah, shiva, shivah - (Judaism) a period of seven days of mourning after the death of close relative; "the family is sitting shiva"