Definition of soy in English:


Pronunciation /soi/ /sɔɪ/

Translate soy into Spanish


North American
  • 1Protein derived from soybeans, used as a replacement for animal protein in foods and fodder.

    British term soya

    ‘I'm trying to add more soy into my diet’
    • ‘soy is a key ingredient in livestock feed’
  • 2The soybean plant.

    ‘soy is the nation's leading source of food-grade oil’
    • ‘the most common GMOs are soy, corn, canola, and cotton’


Late 17th century from Japanese soy, shoy, variant of shō-yu, from Chinese shi-yu, from shi ‘salted beans’ + yu ‘oil’.