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corrugator

British  
/ ˈkɒrʊˌɡeɪtə /

noun

  1. a muscle whose contraction causes wrinkling of the brow

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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“Fluting happens at the top,” McDaniel said, indicating a series of whirring cogs on the corrugator that folded the paper into tiny creases — origami at industrial scale.

From New York Times • Nov. 28, 2022

With these movements, you can feel the action of the corrugator supercilli.

From Textbooks • Jun. 19, 2013

There are several small facial muscles, one of which is the corrugator supercilii, which is the prime mover of the eyebrows.

From Textbooks • Jun. 19, 2013

He lowered his brow, using his depressor glabellae, depressor supercilii, and corrugator.

From "Blink" by Malcolm Gladwell

He admits, however, that the corrugator draws together the eyebrows, causing vertical furrows above the base of the nose, or a frown.

From The Expression of the Emotions in Man and Animals by Darwin, Charles