(of animals) able to swim about; not attached
lacking cells
the process of using your mind to consider something carefully
able to act at will; not hampered; not under compulsion or restraint
grant freedom to; free from confinement
unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion
costing nothing
remove or force out from a position
not occupied or in use
relieve from
