Definition of perlaceous in English:

perlaceous

(also pearlaceous)

adjective

Botany Zoology
rare
  • Resembling pearl in appearance; pearly, nacreous.

Origin

Late 18th century; earliest use found in Thomas Pennant (1726–1798), naturalist, traveller, and writer. From post-classical Latin perla pearl + -aceous.

Pronunciation

perlaceous

/pəːˈleɪʃəs/