the GNU version of the Collaborative International Dictionary of English
adj. Capable of being integrated.
The Century Dictionary and Cyclopedia
Capable of being integrated; that may be formed into, or assimilated to, a whole.
In mathematics, capable of being integrated, as a mathematical function or differential equation.
Word Usage
"But they provide a very simple model that in fact is almost trivially integrable - engineers tackle differential equations ten times as hard before breakfast every morning."