A muscle the function of which is to render a part firm and tense. [Mod. L. fr. L. tendo, pp. tensus, to stretch]
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ten·sor 'ten(t)-sər, 'ten-.sȯ(ə)r n a muscle that stretches a part or makes it tense called also tensor muscle
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n.
any muscle that causes stretching or tensing of a part of the body.
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ten·sor (tenґsor) [L., “stretcher,†“pullerâ€] any muscle that stretches or makes tense.Medical dictionary. 2011.