adj. Having a value that is mostly, or entirely, a function of its desirability.
the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to position.
The Century Dictionary and Cyclopedia
Of or pertaining to position; relating to or depending on position.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or determined by position
Word Usage
"Speltz prefers the term positional plagiocephaly because the babies 'flat heads are caused in part by their spending so much time on their backs' sleeping in cribs, lying back in car seats and carriages."