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Word: plaintains (lookup in dictionary) (lookup stats)
Dates: during 1940-1949
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Usage:

...helped develop it. A very dilute dose (one pound of the chemical to 75 gallons of water), when sprayed on the leaves, kills the toughest U.S. weed-the perennial wild morning glory (also called bindweed). It is also deadly to poison ivy, poison oak, sumac, horse nettle, chickweed, thistles, plaintain, dandelions, ragweed. But it is harmless to animals, is not inflammable, does not corrode sprayers or reduce the fertility of the soil...

Author: /time Magazine | Title: Science: The War Against Weeds | 2/19/1945 | See Source »

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