The faulty formation of an image arising because the magnification of the peripheral part of an object is different from that of the central part when viewed through a lens.
Outercourse And Other Trending Words On Dictionary.comFrom Final Jeopardy to toothbrushes made from panda's favorite snack, the trending words on dictionary.com took us all around the world and back again. Get ready, get set, go word-crazy!
Why Exposure Is Our 2014 Word Of The YearIn 2014, the Ebola virus, widespread theft of personal information, and shocking acts of violence and brutality dominated the news. Vulnerability and visibility were at the core of the year’s most notable headlines. Encapsulating those themes, Dictionary.com’s Word of the Year for 2014 is exposure. The word exposure entered English in the early 1600s to refer to a state of being without shelter or protection. …
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.