productive

adjective7

1. •
   Capable of producing something, especially in abundance; fertile.
2. •
   Yielding good or useful results; constructive.
3. •
   Of a cough, producing mucus or sputum from the respiratory tract.
4. •
   Of inflammation, producing new tissue.
5. •
   Of, or relating to the creation of goods or services.
6. •
   Consistently applicable to any of an open set of words.
7. •
   A type of set of natural numbers, related to mathematical logic; a set S is productive if there exists a total recursive function f such that ∀x∈ℕ,~~W_x⊆S⇒f(x)∈A⧵W_x, where W_x is a recursive function whose Gödel number is x.