Dictionary.com
definitions
  • synonyms
British Dictionary definitions for crop circle

crop circle

noun
  1. any of various patterns, usually wholly or partly consisting of ring shapes, formed by the unexplained flattening of cereals growing in a field
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