n. five; quintet, group of five, series of five; period of five years; (Chemistry) atom that has a valence of five; (Meteorology) period of five days in a row

The following video provides you with the correct English pronunciation of the word "pentad", to help you become a better English speaker.

---

Noun
1. the cardinal number that is the sum of four and one
(synonym) five, 5, V, cinque, quint, quintet, fivesome, quintuplet, fin, Phoebe, Little Phoebe
(hypernym) digit, figure

nm. pentad

(n.)
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; as, nitrogen is a pentad in the ammonium compounds.
  

(a.)
Having the valence of a pentad.
  

pentad

• hợp năm

(C) 2007 www.TừĐiểnTiếngViệt.net