Acrothoracica
plural noun
Ac·ro·tho·rac·i·ca
¦a-krō-thə-ˈra-si-kə
: a small order or suborder of barnacles that have the body surrounded by a chitinous mantle and that bore and inhabit cavities (as in mollusk shells or corals)
Word History
Etymology
New Latin, from acr- + Thoracica
First Known Use
1909, in the meaning defined above