Definition of PENTAD

pentad

Plural: pentads

Noun

  • A group or set of five.
  • the cardinal number that is the sum of four and one
  • Synonym of quintet: A group of five things, particularly
  • Synonym of quinquennium: a five-year period, especially in reference to the first and second halves of calendrical decades.
  • Synonym of quintet: A group of five things, particularly
  • A five-day period, especially a temperature average taken every five days.
  • Synonym of quintet: A group of five things, particularly
  • A five-day division of the Chinese calendar, forming part of a solar term (Chinese: 候).
  • Synonym of quintet: A group of five things, particularly
  • A pentavalent element or group: an atom or molecule with a valence of five, comparable with five atoms of hydrogen.

Examples

  • He proudly formed a PENTAD of letters into a high-scoring word.
  • Nitrogen is a pentad in the ammonium compounds.

Origin / Etymology

From Ancient Greek πεντάς (pentás), from πέντε (pénte, “five”) + -άς (-ás, “-ad”), equivalent to pent- + -ad.

Synonyms

5, cinque, fin, five, fivesome, Little Phoebe, Phoebe, quint, quintet, quintuplet, V, quinquennium

Scrabble Score: 9

pentad: valid Scrabble (US) TWL Word
pentad: valid Scrabble Word in Merriam-Webster MW Dictionary
pentad: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 11

pentad: valid Words With Friends Word