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 r?tt (see rat (n.)).
雙語(yǔ)例句
1. Researchers observed one bird impale a rodent on a cactus.
研究人員觀察到一只鳥(niǎo)把一只嚙齒動(dòng)物釘在一棵仙人掌上。
來(lái)自柯林斯例句
2. When there is a full moon, this nocturnal rodent is careful to stay in its burrow.