Definition of placophoran in US English:

placophoran

adjective

Zoology
rare
  • Of or relating to the former molluscan division Placophora, now usually identified with the class Polyplacophora, which comprises the chitons.

noun

Zoology
rare
  • A mollusc of the former division Placophora; a polyplacophoran.

Origin

Late 19th century; earliest use found in The Century Dictionary. From scientific Latin Placophora, class or division name + -an. With use as adjective compare placophorous.

Pronunciation

placophoran

/pləˈkɒf(ə)rən/