myoedema
noun
myo·ede·ma
variants:
or British myo-oedema \ ˌmī-ō-i-ˈdē-mə 
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plural myoedemas
also myoedemata\ -mət-ə
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Medical Definition of myoedema
: the formation of a lump in a muscle when struck a slight blow that occurs in states of exhaustion or in certain diseases