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Definition of Corrugator
1. n. A muscle which contracts the skin of the forehead into wrinkles.
Definition of Corrugator
1. Noun. A machine that corrugates material. ¹
2. Noun. (anatomy) The corrugator supercilii, a narrow pyramidal muscle at the medial end of the eyebrow. ¹
3. Noun. (anatomy) The corrugator cutis ani, a thin stratum of involuntary muscular fibre that radiates from the anal orifice. ¹
¹ Source: wiktionary.com
Medical Definition of Corrugator
1. A muscle that draws together the skin, causing it to wrinkle. Origin: L. Cor-rugo (conr-), pp. -atus, to wrinkle, fr. Ruga, a wrinkle (05 Mar 2000)