Ossin.前东德居民OSSabbr.航天科学局(=Office of Space Sciences)；战略物资局(=Office of Strategic Services)；开放源代码软件(=Open Source Software)Ossified bone骨骼ossa frontale[医] 额骨ossa centrale[医] [腕]中央骨ossa draconis[医] 龙骨osseosonomete骨导音检查器osseous cells[医] 骨细胞ossa orbitale[医] 眶骨(分裂颧骨的上半部)ossa coccygis[医] 尾骨osseous polyp[医] 骨性息肉ossa pectoris[医] 胸骨