Definition of wether in English:



  • A castrated ram.

    • ‘The system encouraged a change from wethers to ewes.’
    • ‘Twenty-five skeletally mature crossbred merino wethers were used with the approval of our local Animal Care and Ethics Committee.’
    • ‘They brought with them 350 ewes, 45 wethers, ten bullocks, six heifers, one bull, four horses, and a number of goats and some poultry.’
    • ‘Most adult sheep were wethers (castrated rams) raised mainly for wool.’
    • ‘A cold southerly rain storm caught the newly shorn wethers and four hundred died because the cold congealed the fat around their kidneys.’
    • ‘In Trial 3, the effects of corn smut on the in vivo digestibility of high corn silage diets were determined with mature Hampshire-cross wethers.’


Old English, of Germanic origin; related to Dutch weer and German Widder.