siliceousWiktionary 原文/sɪˈlɪ.ʃəs/释义形容词adjective1(chemistry) Of, relating to, consisting of, or resembling silica or silicates.2(geology) Comprised of biogenic silicate minerals. Contrasted with the inorganic term siliciclastic.同族词派生词 4biosiliceous·calcareosiliceous·nonsiliceous·siliceousness