单词	ostiole
释义	ostiole noun os·​ti·​ole ˈä-stē-ˌōl  : a small bodily aperture, orifice, or pore Example Sentences Recent Examples on the Web As its spores ripen, the puffball’s outer skin, or cuticle, develops one or two small holes called ostioles through which millions of dry spores escape at the smallest disturbance. Dave Taft, New York Times, 1 Nov. 2017 Word History Etymology New Latin ostiolum, from Latin, diminutive of ostium First Known Use 1721, in the meaning defined above
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