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pentad. In DICTIOUS you will not only get to know all the dictionary meanings for the word
pentad, but we will also tell you about its etymology, its characteristics and you will know how to say
pentad in singular and plural. Everything you need to know about the word
pentad you have here. The definition of the word
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English
Etymology
From Ancient Greek πεντάς (pentás), from πέντε (pénte, “five”) + -άς (-ás, “-ad”), equivalent to pent- + -ad.
Pronunciation
Noun
pentad (plural pentads)
- 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.
- (climatology) 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).
- (chemistry) 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.
Coordinate terms
- (group) monad, duad/dyad, triad, tetrad, pentad, hexad, hebdomad/heptad, ogdoad/octad, ennead/nonad, decad/decade, hendecad, dodecad/duodecade, chiliad
Derived terms
Translations
group of five things
— see also quintet
climatology: five-day period
five-day division of the Chinese calendar
chemistry: pentavalent element or group
References
Anagrams
Haitian Creole
Etymology
From French pintade.
Pronunciation
Noun
pentad
- guinea fowl
- (figurative) shy and cowardly (person)
Derived terms