Meaning of subadditive in English:

subadditive

Pronunciation /ˌsʌbˈadɪtɪv/

adjective

Mathematics
  • Of a function f: such that f (x + y) ≤ f (x) + f (y) for all values of x and y.

    Sometimes equality (additivity) is excluded.

Origin

Mid 19th century (in an earlier sense). From sub- + additive.