Dictionary.com
Thesaurus.com

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As was the case at the paper mill in Rome, the facility was dominated by a single, tremendously expensive machine — here, a multimillion-dollar corrugator, into which the containerboard was fed at a velocity of 1,200 feet per minute.

From New York Times

All three layers are sealed together with cornstarch, which is cooked to boiling and introduced via the corrugator’s dosing tank.

From New York Times

“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

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

From Literature

But that often has the unintended effect of you flexing this particular muscle, the “corrugator supercilii.”

From Time