noun, plural cy·a·thi [sahy-uh-thahy] /ˈsaɪ əˌθaɪ/.
Origin of cyathus
Examples from the Web for cyathus
Cyathus stercoreus varies considerably, however, as to shape and size of cups, according to habitat.
Vina Opimia is best; but because one drinks a cyathus of that, why should he forego a good nil of Thasian or Ccuban?A Friend of Caesar|William Stearns Davis
This genus is distinguished from Cyathus, its nearest ally, by the peridial wall, consisting of two layers only.
Cyathiformis is from cyathus, a drinking cup; formis, form or shape.
The ladle (cyathus, Fig. 127) held about one-twelfth of a pint, or more probably was graduated by twelfths.The Private Life of the Romans|Harold Whetstone Johnston