In organs: having the power to move their contents, or to change their shape or tension by writhing or contracting as required by their particular physiological functions.
Of or relating to those mental images that arise from the sensations of bodily movement and position. Cf. kinesthetic, proprioceptive.
In organs or organelles: capable of producing motion.
In organisms: having the power to move spontaneously.
A person whose prevailing mental imagery takes the form of inner feelings of action, such as incipient pronunciation of words, muscular innervations, etc.
Having a strong tendency to change.
Readily decomposable.
Not stable.
Radioactive, especially with a short half-life.
Unpredictable.
Fickle.
Fluctuating; not constant.
To release (an animal) from a stable.