| dilatator | <anatomy> A muscle which dilates any part; a dilator. Origin: NL. Cf. L. Dilatator a propagator. Source: Websters Dictionary (01 Mar 1998) |
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| musculus dilatator | <anatomy> A muscle which opens an orifice or dilates the lumen of an organ; it is the dilating or opening component of a pylorus (the other component is the sphincter muscle). Synonym: musculus dilatator, musculus dilator. (05 Mar 2000) |
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