glyphosate /ˈɡlɪfəseɪt/ noun2 •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. — 2016 •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. — 2026 formsglyphosates