1.The fixed, firm part of a body, which supports it or gives it strength and solidity; as, the bones are the stamina of animal bodies; the ligneous parts of trees are the stamina which constitute their strength.
2.Whatever constitutes the principal strength or support of anything; backbone; vigor; as, the stamina of a constitution or of life; the stamina of a State. "He succeeded to great captains who had sapped the whole stamina and resistance of the contest."
3.Hence: The power of endurance; the ability to withstand fatigue, disease, deprivation, etc., and continue working.
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