adj. which can be apprehended (usually in the sense of being understood)
the GNU version of the Collaborative International Dictionary of English
adj. Capable of being apprehended or conceived.
The Century Dictionary and Cyclopedia
Capable of being apprehended or understood; possible to be conceived by the human intellect.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. capable of being apprehended or understood
Word Usage
"However much it grasps metaphorically at a less tangible if still apprehensible object of our experience of fiction, to speak of "quality of vision" does not adequately account for the concrete achievements of writers as stylists."