a European geometrid moth, Biston betularia, occurring in a pale grey speckled form in rural areas and a black form in industrial regionsSee also melanism (def. 1)
Wacky Regionalisms: Different Word, Same MeaningRead more in this article about some frequently asked questions and fun facts related to our definitions.
10 Times Idioms Were Used Incorrectly In Famous SituationsWhen idioms are misused, quite a bit can be lost in translation, leaving the audience scratching their heads (we've done a slideshow on that too!). A gaffe between friends is one thing, but what about when the whole world is listening? Pretty embarrassing ... or learning moment? Either way, here are 10 times idioms were used incorrectly in famous situations.
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