preosteoblastWiktionary 原文英美构词拆解prepre-前缀osteoblastosteoblast词干pre-Before; physically in front of. · Before; earlier in time; beforehand.词源说明From pre- + osteoblast.释义名词noun1A mesenchymal cell that differentiates to form an osteoblast同族词派生词 1preosteoblastic