Pentad

Full definition of pentad

Noun

1. a group or series of five things
2. (chemistry) Any element, atom, or radical having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad.Nitrogen is a pentad in the ammonium compounds.

Derived terms

• pentadic

Anagrams

• panted
• pedant