Definition of naissant in English:

naissant

adjective

Heraldry
  • (of a charge, especially an animal) issuing from the middle of an ordinary, especially a fess.

    • ‘A demi-lion naissant from the partition or with a sword argent in the paw dexter.’
    • ‘Or, a demi-lion rampant gules, naissant from a fesse sable.’

Origin

Late 16th century: from French, literally being born, present participle of naître, from Latin nasci be born.

Pronunciation:

naissant

/ˈneɪs(ə)nt/