pentad
Synonym of quintet: A group of five things, particularlySynonym 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.
Meaning
4 sensesSynonym 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.
- the cardinal number that is the sum of four and one
Origin
From Ancient Greek πεντάς (pentás), from πέντε (pénte, “five”) + -άς (-ás, “-ad”). By surfFrom Ancient Greek πεντάς (pentás), from πέντε (pénte, “five”) + -άς (-ás, “-ad”). By surface analysis, pent- + -ad.
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