Definition of Heptad

1. Noun. The cardinal number that is the sum of six and one.

Exact synonyms: 7, Septenary, Septet, Seven, Sevener, Vii
Generic synonyms: Digit, Figure
Derivative terms: Seven

Definition of Heptad

1. n. An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective.

Definition of Heptad

1. Noun. a group of seven things ¹

¹ Source: wiktionary.com

Definition of Heptad

1. a group of seven [n -S]

Medical Definition of Heptad

1. An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective. Origin: L. Heptas the number seven. Gr, fr. "epta seven. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Heptad

hepta-
heptabasic
heptacene
heptachlor
heptachlor epoxide
heptachlorobiphenyl
heptachlorobiphenyls
heptachlors
heptachord
heptachords
heptacosadiene
heptacosane
heptacosanoic
heptacosanoic acid
heptacyclic
heptad (current term)
heptad repeat
heptade
heptadecagon
heptadecagons
heptadecamer
heptadecameric
heptadecamers
heptadecane
heptadecanes
heptadecanoate
heptadecanoates
heptadecanoic
heptadecanoic acid
heptadecanoyl

Literary usage of Heptad

Below you will find example usage of this term as found in modern and/or classical literature:

1. Fownes' Manual of Chemistry, Theoretical and Practical by George Fownes (1878)
"heptad METALS. MANGANESE, as already observed, is the only known m?tal this class, and It is more conveniently described in connection with • iron metala. ..."

2. The Revelation of Jesus Christ by John by Francis John Bodfield Hooper (1861)
"heptad OF THE SEALS resumed and concluded. Remarks introductory to the seventh seal. The Episode of the sixth seal being concluded, we proceed to that ..."

3. Numbers: Their Occult Power and Mystic Virtue: Being a Résumé of the Views by William Wynn Westcott (1890)
"The heptad, say the followers of " Pythagoras," was so called from the Greek verb "sebo," to venerate (and from the Hebrew ..."

4. The Revelation of Jesus Christ by John by Francis John Bodfield Hooper (1861)
"... and its restoration by the army in the person of Claudius, are the events alluded to in the second and third divisions of this heptad ? ..."

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