a bone in the forelimb of an amphibian, e.g. a frog, that represents the fused radius and ulna of less primitive vertebrate animals, e.g. mammals
| 单词 | radio-ulna |
| 释义 | radio-ulnanouna bone in the forelimb of an amphibian, e.g. a frog, that represents the fused radius and ulna of less primitive vertebrate animals, e.g. mammals |
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