amerikai:
brit:
1. Capable of producing something, especially in abundance; fertile.
2. Yielding good or useful results; constructive.
3. Of, or relating to the creation of goods or services.
4. (of an affix or word construction rule) Consistently applicable to any of an open set of words.
5. Of a cough, producing mucus or sputum from the respiratory tract.
6. Of inflammation, producing new tissue.
7. A type of set of natural numbers, related to mathematical logic.
a productive set