Merriam-Webster's Collegiate® Dictionary, 11th Edition
POSTURE
I. noun see: position
Date: circa 1586
1. the position or bearing of the body whether characteristic or assumed for a special purpose , the pose of a model or artistic figure, state or condition at a given time especially with respect to capability in particular circumstances , a conscious mental or outward behavioral attitude,
II. verb (postured; posturing)
Date: circa 1645
transitive verb to cause to assume a given posture ; pose , intransitive verb to assume a posture, to assume an artificial or pretended attitude ; attitudinize , posturer noun