| 单词 | acotyledon |
| 释义 | acotyledon in British English (əˌkɒtɪˈliːdən) noun any plant, such as a fern or moss, that does not possess cotyledons Derived forms acotyledonous (aˌcotyˈledonous) adjective acotyledon in American English (ˌeɪˌkɑtəˈlidən) noun any plant lacking seed leaves (cotyledons), as dodder acotyledon in American English (ˈeiˌkɑtlˈidn, eiˌkɑt-) noun a plant without cotyledons, therefore one belonging to a group lower than the seed plants Derived forms acotyledonous (ˈeiˌkɑtlˈidnəs, eiˌkɑt-) adjective Word origin [1810–20; a-6 + cotyledon]This word is first recorded in the period 1810–20. Other words that entered Englishat around the same time include: dominance, duplex, dynamic, rationalize, zombie |
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