Entry 1 sense Webster, 1913 Chrysocolla · Chrys·o·col·la · IPA /ˌkɹɪs.əˈkɑl.ə/ 01 n. A hydrous silicate of copper, occurring massive, of a blue or greenish blue color. 1. A hydrous silicate of copper, occurring massive, of a blue or greenish blue color.(Min.)