Dictionary.com
Thesaurus.com

trilithon

American  
[trahy-lith-on, trahy-luh-thon] / traɪˈlɪθ ɒn, ˈtraɪ ləˈθɒn /
Also trilith

noun

  1. a prehistoric structure consisting of two upright stones supporting a horizontal stone.


trilithon British  
/ traɪˈlɪθɒn, ˈtraɪlɪθ, ˈtraɪlɪˌθɒn, traɪˈlɪθɪk /

noun

  1. a structure consisting of two upright stones with a third placed across the top, such as those of Stonehenge

"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

Other Word Forms

  • trilithic adjective

Etymology

Origin of trilithon

1730–40; < Greek trílithon, neuter of trílithos having three stones. See tri-, -lith