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(), n.[L., a case or sheaf containing one or more pulleys, Gr. . See Trochilics.] 1. (Mach.) A pulley. [Obs.] 2. (Anat.) A pulley, or a structure resembling a pulley; as, the trochlea, or pulleylike end, of the humerus, which articulates with the ulna; or the trochlea, or fibrous ring, in the upper part of the orbit, through which the superior oblique, or trochlear, muscle of the eye passes. スポンサード リンク
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