Definition of pentad in English:

pentad

Syllabification: pen·tad
Pronunciation: /ˈpenˌtad
 
/

noun

technical
  • A group or set of five.
    More example sentences
    • The classic pentad in thrombotic thrombocytopenic purpura includes fever, neurologic changes, renal failure, microangiopathic hemolytic anemia and thrombocytopenia.

Origin

mid 17th century: from Greek pentas, pentad-, from pente 'five'.

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Pronunciation: skōSH
noun
a small amount; a little