adj. Capable of being saturated, of achieving saturation
the GNU version of the Collaborative International Dictionary of English
adj. Capable of being saturated; admitting of saturation.
The Century Dictionary and Cyclopedia
That may be saturated; capable of saturation.
Word Usage
"But there is gain less than one, AND there is a saturable response, so the positive feedback is not catastrophic to the signalling pathways in which it participates."