CrThe symbol for chromium.CRabbr.1. cathode ray2. conditioned reflex3. conditioned response4. Costa RicaAmerican 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.cr the internet domain name for (Computer Science) Costa Rica Cr abbreviation for (Government, Politics & Diplomacy) Councillor the chemical symbol for (Elements & Compounds) chromium CR abbreviation for 1. (Theology) Community of the Resurrection 2. (Placename) Costa Rica 3. (Placename) Costa Rica (international car registration) Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014CR 1. conditioned reflex; conditioned response. 2. consciousness-raising. 3. critical ratio. Cr Chem. Symbol. chromium. cr. 1. credit. 2. creditor. 3. crown. C.R. Costa Rica. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.CrThe symbol for chromium. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.