| 单词 | dioon |
| 释义 | dioon /duy"oh on'/, n. any of several Mexican and Central American palmlike plants belonging to the genus Dioon, of the cycad family, having a crown of stiff, pinnate leaves. [ < NL (1843) < Gk di- DI-1 + oión egg; so named because the seeds are borne in pairs] |
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