Wiktionary. non-essential prime implicantnoun. On a Karnaugh map: a prime implicant which does not cover any 1 which cannot covered by some other prime implicant.

What is meant by Implicants?

: something that implies (as a proposition)

Which of the Implicants is non essential?

The prime implicants for which are neither essential nor redundant prime implicants are called selective prime implicants(SPI).