[ˈperiblɑ:st]
胚周区，胚周层：端黄卵的胚层部分，其细胞缺乏完整的细胞膜- cystectasia,cystectasy
- cystectomy
- cysteic acid
- cysteine
- cysteinyl
- cystelcosis
- cystencephalus
- cystendesis
- cysterethism
- cysthypersarcosis
- cysti-
- cystic
- cysticerci
- cysticercoid
- cysticercosis
- cysticercus
- Cysticercus
- cysticolithectomy
- cysticolithotripsy
- cysticorrhaphy
- cysticotomy
- cystides
- cystido-
- cystidoceliotomy
- cystidolaparotomy