| 单词 | icosahedron |
| 释义 | Word Frequency icosahedron(ˌaɪkəsəˈhiːdrən) nounWord forms: plural -drons or -dra (-drə) a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles Derived forms icosahedral (ˌicosaˈhedral) adjective Word origin C16: from Greek eikosaedron, from eikosi twenty + -edron -hedron |
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