Search Result for "linear operator":
Wordnet 3.0

NOUN (1)

1. an operator that obeys the distributive law: A(f+g) = Af + Ag (where f and g are functions); 



WordNet (r) 3.0 (2006):

linear operator
    n 1: an operator that obeys the distributive law: A(f+g) = Af +
         Ag (where f and g are functions)