释义 |
trun·cate I. \ˈtrəŋˌkāt, usu -ād.+V\ transitive verb (-ed/-ing/-s) Etymology: Latin truncatus, past participle of truncare to cut off, mutilate, from truncus trunk, torso; probably akin to Welsh trwch broken, truncated, Lithuanian trenkti to push violently, jolt and perhaps to Old English thringan to crowd, throng — more at throng 1. : to abbreviate by or as if by cutting off : lop < lower ends of the ridges … are truncated by glacial erosion — W.J.Miller > < truncate the value of pi from eight decimal places to 3.14 > < truncate a news item to fit available space > < games … abruptly truncated by the arrival of the evening papers — H.G.Wells > 2. : to replace (as an edge or corner of a crystal) by a plane and especially by a plane that is equally inclined to the adjoining faces II. adjective Etymology: Latin truncatus, past participle of truncare 1. : having the end square or even as if cut off < a truncate leaf > < a truncate feather > 2. : lacking an apex — used of a spiral (as of a gastropod mollusk) shell in which the apex of the young shell breaks off naturally |