glyphosate

noun

1. (countable, uncountable)N-phosphonomethyl glycine, the active ingredient of several herbicides that inhibit a plant growth enzyme.

   “Two-thirds of Europeans support a ban on glyphosate, the most widely used agricultural chemical in the world’s history, according to a new Yougov poll.”

   “France led the opposition to allowing the use of glyphosate, the main ingredient in Monsanto’s Roundup and in weed killers made by other companies.”

   “But the executive order Mr. Trump issued Wednesday to increase domestic production of glyphosate — a widely used weedkiller and possible carcinogen that has been the target of thousands of lawsuits, including one brought by Mr. Kennedy — stunned and infuriated the activists.”

2. (countable, uncountable)Any of several herbicides based on it, such as Roundup.

   “In previous years Penryn Town Council has used Falmouth Town Council to fulfil the parks contract and glyphosate had been used, councillor Debra Clegg confirmed.”