HEPTAD


Meaning of HEPTAD in English

/hep"tad/ , n.

1. the number seven.

2. a group of seven.

3. Chem. an element, atom, or group having a valence of seven.

[ 1650-60; heptad- (s. of heptás ). See HEPTA-, -AD 1 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .