The definition of mutable is a person or thing that changes or can be changed, or changes often.(adjective)
See mutable in Webster's New World College Dictionary
Origin: ME < L mutabilis, changeable < mutare, to change: see miss
See mutable in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Latin mūtābilis
Origin: , from mūtāre, to change; see mutate.
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