
1) Tool that ripples paper
Found on
https://www.crosswordclues.com/clue/corrugator

• (n.) A muscle which contracts the skin of the forehead into wrinkles.
Found on
http://thinkexist.com/dictionary/meaning/corrugator/

tool that ripples paper.
Found on
http://www.coxes.com/stamping/fun/glossary.htm

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) ...
Found on
http://www.encyclo.co.uk/local/20973
Cor'ru·ga`tor noun [ New Latin ; confer French
corrugateur .]
(Anat.) A muscle which contracts the skin of the forehead into wrinkles.
Found on
http://www.encyclo.co.uk/webster/C/165

Type: Term Pronunciation: kōr′ŭ-gā-ter, -tōr Definitions: 1. A muscle that draws together the skin, causing it to wrinkle.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=20739

corrugator 1. A muscle which contracts the skin of the forehead into wrinkles. 2. A muscle that draws together the skin, causing it to wrinkle.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1874/

Latin con = together, and ruga = wrinkle, hence a muscle that produces wrinkles.
Found on
https://www.encyclo.co.uk/local/21450
No exact match found.