Definition of biotroph in US English:

biotroph

noun

  • A parasite, especially a fungus, that derives nutrition from living cells of a host plant.

Origin

1950s. From bio- + -troph, after biotrophic or biotrophy. Compare German biotroph, adjective.

Pronunciation

biotroph

/ˈbʌɪə(ʊ)trəʊf/