Mid 17th century; earliest use found in Henry Oldenburg (c1619–1677), scientific correspondent and secretary of the Royal Society. From red + eared.
Late 18th century; earliest use found in John Latham (1740–1837), naturalist. From red + eared.
英语词典包含243303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。