ˈsīəthəs noun
Etymology: Latin & Greek; Latin cyathus, from Greek kyathos; akin to Greek koilos hollow — more at cave
1. or ky·a·thos ˈkīəˌthäs plural cya·thi -ˌthī or kya·thoi -ˌthȯi : a long-handled cup or earthenware ladle used especially in ancient Greece for filling drinking cups with wine
2. plural cyathi
[New Latin, from Latin]
: any small cup-shaped cavity or organ of a plant ; especially : cupule 1c
3. capitalized
[New Latin, from Latin]
: a genus of bird's-nest fungi having the fruit body narrowed at the base and flaring at the top — compare nidulariaceae