| 释义 |
eradicant, a. and n.|ɪˈrædɪkənt|
[ad. L. ērādīcant-em, pr. pple. of ērādīcāre: see eradicate v.]
A. adj. = eradicating ppl. a.; spec. applied to a substance intended to eradicate a particular pest, disease, etc. from the environment in which it is applied.
1949Butler & Jones Plant Path. vii. 228 In the United States an eradicant spray of sodium dinitrocresylate has been recommended. 1970Sci. Jrnl. Aug. 64/1 Sulphur..had limited eradicant properties. 1981Southern Horticulture (N.Z.) Spring 29 (Advt.), It [sc. Milcurb] has eradicant and protective properties and its activity extends for periods up to 4 weeks.
B. n. That which eradicates; spec. an eradicant substance.
1954in Webster Add. 1960W. A. Kreutzer in Horsfall & Dimond Plant Path. III. xi. 458 Volatile chemicals act as eradicants; nonvolatile chemicals most frequently act as protectants. 1971New Scientist 22 Apr. 208/1 Several poisons have been tried as woodworm eradicants. 1977Protecting World's Crops (Shell Internat. Petroleum Co.) 4 Eradicants, such as benomyl, include the systemic fungicides. |