mo·bile 
(mōbəl, -bēl′, -bīl′)
(mōbəl, -bēl′, -bīl′)adj.
1.
a. Capable of moving or of being moved readily from place to place: a mobile organism; a mobile missile system.
b. Of or relating to wireless communication devices, such as cell phones.
2.
a. Capable of moving or changing quickly from one state or condition to another: a mobile, expressive face.
b. Fluid; unstable: a mobile situation following the coup.
3.
a. Marked by the easy intermixing of different social groups: a mobile community.
b. Moving relatively easily from one social class or level to another: an upwardly mobile generation.
c. Tending to travel and relocate frequently: a restless, mobile society.
4. Flowing freely; fluid: a mobile liquid.
n.
1. (mōbēl′) A type of sculpture consisting of carefully equilibrated parts that move, especially in response to air currents.
2. A mobile phone.
[Middle English, from Old French, from Latin mōbilis, from *movibilis, from movēre, to move; see meuə- in the Appendix of Indo-European roots.]