单词 | agnathan |
释义 | ag·na·than (ăgnə-thən) n. Any of various fishes lacking jaws, including the hagfishes and the lampreys and many extinct groups, such as the ostracoderms. [A-1 + Greek gnathos, jaw; see genu-2 in the Appendix of Indo-European roots + -AN1.] agna·than adj. |
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