英语词汇“protomammal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	protomammal
释义	protomammal (once / 11819311 pages) n WORD FAMILY protomammal: protomammals n probably warm-blooded; considered direct ancestor of mammals Syn\|Hypo\|Hyper therapsid Chronoperates paradoxus shrew-sized protomammal from the Alberta region of Canada; from about 55 million years ago (much more recent than other mammal-like reptiles) cynodont small carnivorous reptiles dicynodont a kind of therapsid synapsid, synapsid reptile extinct reptile having a single pair of lateral temporal openings in the skull
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。