from the GNU version of the Collaborative International Dictionary of English
- n. A kind of oak-leaf gall. See gall.
from The Century Dictionary and Cyclopedia
- n. A singular kind of gall found on the leaves of the oak and some other trees, of the figure of a cup, or a drinking-glass without its foot, adhering by its point or apex to the leaf, and containing the larva of a small fly. The insect which makes cup-galls is Cecidomyia poculum.
Sorry, no etymologies found.