Definition of poly- in English:

poly-

combining form

  • 1Many; much.

    ‘polyandry’
    ‘polychrome’
    1. 1.1Chemistry Denoting the presence of many atoms or groups of a particular kind in a molecule.
      ‘polycarbonate’

Origin

From Greek polus ‘much’, polloi ‘many’.

Pronunciation

poly-

/ˈpɒli/