a. 1. Having, or resembling, bosom; kept in the bosom; hidden. [ 1913 Webster ]
2. [ Combining form ] Having such a bosom; as, a big-bosomed woman. [ PJC ]
adj. having a pronounced womanly shape, with well-developed breasts. [ informal ] Syn. -- bosomy, buxom, curvaceous, sonsie, sonsy, voluptuous. [ WordNet 1.5 +PJC ]