1835 (as an adjective 1833), from Modern Latin Rodentia, the order name, from Latin rodentem (nominative rodens), present participle of rodere "to gnaw, eat away," from PIE root *red- "to scrape, scratch, gnaw" (cognates: Sanskrit radati "scrapes, gnaws," radanah "tooth;" Latin radere "to scrape;" Welsh rhathu "scrape, polish"). Uncertain connection to Old English rætt (see rat (n.)).
实用例句
1. Researchers observed one bird impale a rodent on a cactus.
研究人员观察到一只鸟把一只啮齿动物钉在一棵仙人掌上。
来自柯林斯例句
2. When there is a full moon, this nocturnal rodent is careful to stay in its burrow.
月圆之夜，这种夜间活动的啮齿类动物会小心地呆在地洞里不出来。
来自辞典例句
3. 'The rat,'said O'Brien, still addressing his invisible audience,'although a rodent, is carnivorous.
“ 老鼠, ”奥勃良仍向看不见的听众说, “ 是啮齿动物, 但是也食肉.
来自英汉文学
4. This small rodent can scoop a long, narrow tunnel in a very short time.
这只海狸能在短时间内挖出一条长且窄的洞.
来自辞典例句
5. Did the rodent droppings have any specific shape or form?
