Definition of monotrochal in US English:

monotrochal

adjective

Zoology
  • Of a trochophore larva: having a single band or ring of cilia round the body.

Origin

Late 19th century; earliest use found in Encyclopaedia Britannica. From scientific Latin Monotrocha, former group name + -al.

Pronunciation

monotrochal

/məˈnɒtrəkl/