| 单词 |
defoliant |
| 释义 |
defoliant|dɪˈfəʊlɪənt| [f. defoliate v. + -ant1.] A chemical used to cause defoliation.
1943N.Y. Herald Tribune 7 Nov. 6 A cotton crop sprinkled with a specially prepared defoliant to make machine picking easier was harvested recently. 1956Nature 3 Mar. 417/2 Research on the use of herbicides, arboricides and defoliants in East Africa. 1963Guardian 1 May 8/5 The defoliants..are widely used by farmers. 1967Punch 1 Mar. 302/2 The most powerful technological nation in the world has deployed its invention in massive weight; from 70,000-ton attack carriers, through flying headquarters equipped with computers, to defoliants for stripping the jungle of concealing vegetation. |

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