Crossword clues for paraquat
Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
quick-acting herbicide, 1961, from para- (1) + first element in quaternary. So called in reference to its chemical configuration.
Wiktionary
n. (context chemistry English) A poisonous yellow herbicide derived from bipyridine
WordNet
n. a poisonous yellow solid used in solution as a herbicide
Wikipedia
Paraquat ( trivial name; ) or N,N′-dimethyl-4,4′-bipyridinium dichloride ( systematic name) is the organic compound with the chemical formula [(CHN)]Cl. It is classified as a viologen, a family of redox-active heterocycles of similar structure. This salt is one of the most widely used herbicides. It is quick-acting and non-selective, killing green plant tissue on contact. It is also toxic to human beings and animals. It is linked to development of Parkinson's disease. The name is derived from the para positions of the quaternary nitrogens. Quantities are sometimes expressed by cation mass alone (paraquat cation, paraquat ion); other salts (with other anions besides chloride) exist. In fact, its redox activity, which produces superoxide anions, is why it is toxic.
Usage examples of "paraquat".
Unknown to Turner, High Times was not accepting ads for any paraquat testers because all evidence showed the testers didn't work.
He didn't care if some kid died or was bilked out of money believing in his bogus paraquat test kit.
Shambling, clicking crabs, the helicopter keeping pace with them, barely ten feet above them, spraying them with paraquat weedkiller the whole tune.
About concerts that had taken place two decades ago, the scarcity of high-quality dope because the 'mind police' had poisoned the fields with paraquat, a scheme to reassemble the original members of Big Blue Nirvana in order to plan a comback ('Except Dawg, man.
I know they got a canyon hole-up, someplace, and I got me some paraquat additives from the redoubt yonder.