| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ex•fo•li•ate (eks fō′lē āt′),USA pronunciation v., -at•ed, -at•ing. v.t. - to throw off in scales, splinters, etc.
- Surgeryto remove the surface of (a bone, the skin, etc.) in scales or laminae.
v.i. - to throw off scales or flakes; peel off in thin fragments:The bark of some trees exfoliates.
- Geology
- to split or swell into a scaly aggregate, as certain minerals when heated.
- to separate into rudely concentric layers or sheets, as certain rocks during weathering.
- [Med.]to separate and come off in scales, as scaling skin or any structure separating in flakes.
- Late Latin exfoliātus past participle of exfoliāre to strip off leaves. See ex-1, foliate
- 1605–15
Collins Concise English Dictionary © HarperCollins Publishers:: exfoliate /ɛksˈfəʊlɪˌeɪt/ vb - (transitive) to wash (a part of the body) with a granular cosmetic preparation in order to remove dead cells from the skin's surface
- (of bark, skin, etc) to peel off in (layers, flakes, or scales)
- (intransitive) (of rocks or minerals) to shed the thin outermost layer because of weathering or heating
- (of some minerals, esp mica) to split or cause to split into thin flakes: a factory to exfoliate vermiculite
Etymology: 17th Century: from Late Latin exfoliāre to strip off leaves, from Latin folium leafexˌfoliˈation n exˈfoliative adj |