HEPTAD


Meaning of HEPTAD in English

transcription, транскрипция: [ ˈhep-ˌtad ]

noun

Etymology: Greek heptad-, heptas, from hepta

Date: 1660

: a group of seven

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.