ˌsīəˌthōˈfiləˌdē noun plural
Usage: capitalized
Etymology: New Latin, from Cyathophyllum, type genus (from cyath- + -phyllum ) + -idae
: a family of Paleozoic tetracorals especially abundant in the Devonian
• cy·a·tho·phyl·loid |sīəˌthō|fiˌlȯid adjective or noun