Definition of organophosphorous in English:

organophosphorous

Pronunciation /ɔːˌɡanəʊˈfɒsf(ə)rəs/ /ˌɔːɡənəʊˈfɒsf(ə)rəs/ /ˌɔːɡ(ə)nəʊˈfɒsf(ə)rəs/

adjective

Chemistry
  • Attributive = "organophosphorus".

Origin

1950s; earliest use found in Ecology. From organo- + phosphorous, after organophosphorus.