Definitions
1.NounSynonym 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.
A five-day period, especially a temperature average taken every five days.
A five-day division of the Chinese calendar, forming part of a solar term (Chinese: 候).
A pentavalent element or group: an atom or molecule with a valence of five, comparable with five atoms of hydrogen."Nitrogen is a pentad in the ammonium compounds."
2.NounSynonym of quinquennium: a five-year period, especially in reference to the first and second halves of calendrical decades.
3.NounA five-day period, especially a temperature average taken every five days.
4.NounA five-day division of the Chinese calendar, forming part of a solar term (Chinese: 候).
5.NounA pentavalent element or group: an atom or molecule with a valence of five, comparable with five atoms of hydrogen."Nitrogen is a pentad in the ammonium compounds."