n. The warp in the ancient upright loom at which the weaver stood upright instead of sitting; a thread of the warp; a thread.n. plural The supports or mainstays of a body; the fixed, firm part of a body, which supports it or gives it its strength and solidity: as, the bones are the stamina of animal bodies; the ligneous parts of trees are stamina which constitute their strength.n. Hence [Pl. stamina, now sometimes used as sing.] Whatever constitutes the principal strength or support of anything; power of endurance; staying power; lasting strength or vigor.n. In botany, the male or fertilizing organ of flowering plants.