- prototrochal
- pro·tot·ro·chal
English syllables. 2014.
English syllables. 2014.
prototrochal — adjective see prototroch … Useful english dictionary
prototrochophore larva — A young trochophore larva with an apical organ, prototrochal girdle and a digestive tract with mouth and anus … Dictionary of invertebrate zoology