ˌthālēˈāshēə noun plural
Usage: capitalized
Etymology: New Latin, from Thalia + -acea
: a small order of tunicates consisting of various aberrant free-swimming pelagic forms (as of the genera Salpa and Doliolum )
• tha·li·a·cean | ̷ ̷ ̷ ̷|āshən noun or adjective