cy·clo·pe·di·a also cy·clo·pae·di·a (s??kl?-p??d?-?)n. An encyclopedia.[Short for encyclopedia.]cy?clo·pe?dic (-d?k) adj.cy?clo·pe?dist (-d?st) n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.cyclopedia (?sa?kl???pi?d??) or cyclopaedian (Journalism & Publishing) a less common word for encyclopedia ?cyclo?pedic, ?cyclo?paedic adj ?cyclo?pedist, ?cyclo?paedist nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014cy?clo?pe?di?a or cy?clo?pae?di?a (?sa? kl??pi di ?) n., pl. -di?as. an encyclopedia. [1630?40; by shortening] cy`clo?pe?dic, adj. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.cyclopedia, cyclopaediaencyclopedia. ? cyclopedist, cyclopaedist, n. ? cyclopedic, cyclopaedic, adj.See also: Books-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.