tȯ(r)ˈna(a)rēə noun
Etymology: New Latin, from Latin tornus lathe, chisel + New Latin -aria — more at turn
1. plural tornarias or tornari·ae -ēˌē : a free-swimming larva that resembles a bipinnaria and is the immature form of an acorn worm or a closely related enteropneust
2. capitalized : any of various larval enteropneusts of which the adult is unknown — used as if a generic name
Tornaria alba
• tor·nar·i·an (ˈ) ̷ ̷| ̷ ̷rēən adjective