peristomeWiktionary 原文构词拆分peri-前缀surrounding · near+-stome后缀mouth or mouth-like opening词源说明From peri- + -stome.释义（英文）名词 Noun(botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses.(zoology) The parts of or surrounding the mouths of numerous invertebrates.The lip, or edge of the aperture, of a spiral