Cabochon

[kæbɔ'ʃɔŋ]

解释:

(noun.) a highly polished gem that is cut convexly but without facets.

整理:弗娜--From WordNet

解释:

n. a precious stone polished but uncut.—En cabochon rounded on top and flat on back without facets—garnets moonstone &c.

阿弗丽达整理