Definition of marmoset in English:



  • A small tropical American monkey with a silky coat and a long tail.

    • ‘Human cold sores, he said, can kill smaller monkeys like marmosets and tamarins.’
    • ‘Rare uakari monkeys, marmosets and umbrella birds move through the lush canopy foraging for food.’
    • ‘Several birds of paradise flew across from tree to tree, watched on by colourful howler monkeys and marmosets.’
    • ‘Every year more than 10,000 non-human primates, including baboons, owl monkeys rhesus macaques and marmosets are transported by commercial airlines to research labs.’
    • ‘The male carries, feeds, and grooms the infants - with help from their older siblings - and may even act as a midwife during birth, grooming and licking the newborn marmosets.’


Late Middle English (also in the sense ‘grotesque figure’): from Old French marmouset grotesque image, of unknown ultimate origin.