CET6+ TEM4 IELTS GRE TOEFL
de-, 向下，强调。-terg, 转，磨擦，词源同turn, terse. 引申义洗涤，洗涤剂。
- detergent:  A detergent is literally something that ‘wipes away’. The word comes from dētergent-, the present participial stem of Latin dētergēre, a compound verb formed from dē- ‘away’ and tergēre ‘wipe’ (its past participle produced English terse). English detergent originally meant simply ‘cleansing agent’ (used particularly in a medical or surgical context); the specific application to a cleanser made from synthetic chemical compounds (as opposed to soap, which is made from fats and lye) is a 20thcentury development.
- detergent (adj.)
- 1610s, from Latin detergentem (nominative detergens), present participle of detergere "to wipe away, cleanse," from de- "off, away" (see de-) + tergere "to rub, polish, wipe." Originally a medical term, application to "chemical cleansing product" is from 1938.
- detergent (n.)
- "detergent substance," 1670s, from detergent (adj.).
- 1. The active ingredient in some of the mouthwashes was simply detergent.
- 2. Wash in warm water with liquid detergent.
- 3. Grease marks can be removed with liquid detergent.
- 4. He recommended a new detergent to me.
- 5. Leona put some detergent into the dishwasher, shut the door and pressed the switch.
[ detergent 造句 ]