Definition of issuant in US English:

issuant

adjective

Heraldry
  • predicative (of the upper part of an animal) shown rising up or out from another bearing, especially from the bottom of a chief or from behind a fess.

    • ‘This is because the charges on the shield duplicate the crest which in many cases is a demi-creature issuant from a crown.’

Origin

Early 17th century: from issue + -ant (on the pattern of French present participles ending in -ant).

Pronunciation

issuant

/ˈiSHo͞oənt/