heptad

hep·tad

H h

Transcription

- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
- [hep-tad]
- /ˈhɛp tæd/
- /hˈeptad/

- US Pronunciation
- US IPA
- [hep-tad]
- /ˈhɛp tæd/

Definitions of heptad word

noun heptad the number seven. 1
noun heptad a group of seven. 1
noun heptad Chemistry. an element, atom, or group having a valence of seven. 1
noun heptad A group of seven things. 1
noun heptad a group or series of seven 0
noun heptad the number or sum of seven 0

See all 8 definitions of heptad

Information block about the term

Origin of heptad

First appearance:

before 1650

One of the 45% oldest English words

First recorded in 1650-60, heptad is from the Greek word heptad- (stem of heptás). See hepta-, -ad1

Historical Comparancy

Parts of speech for Heptad

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Heptad

heptad popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 65% of English native speakers know the meaning and use word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

heptad usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for heptad

noun heptad

hebdomad — the number seven.
septenary — of or relating to the number seven or forming a group of seven.
septuplicate — a group, series, or set of seven identical copies (usually preceded by in).

All 3 Synonyms of heptad