| 单词 | calyptra |
| 释义 | Word Frequency calyptra(kəˈlɪptrə) noun botany 1. a membranous hood covering the spore-bearing capsule of mosses and liverworts 2. any hoodlike structure, such as a root cap Derived forms calyptrate (kəˈlɪpˌtreɪt) adjective Word origin C18: from New Latin, from Greek kaluptra hood, from kaluptein to cover |
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