Source : Webster's Revised Unabridged Dictionary (1913)

Impetiginous \Im`pe*tig"i*nous\, a. [L. impetiginous: cf. F.
   imp['e]tigineux.]
   Of the nature of, or pertaining to, impetigo.

Source : WordNet®

impetiginous
     adj : of or relating to or having impetigo