Lamb of Godn. Christianity Jesus.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.Lamb of God n (Bible) a title given to Christ in the New Testament, probably with reference to his sacrificial death Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Christ (kra?st) n. 1. Jesus of Nazareth, held by Christians to be the fulfillment of prophecies in the Old Testament regarding the coming of a Messiah. 2. (chiefly in versions of the New Testament) the Messiah prophesied in the Old Testament. 3. someone regarded as similar to Jesus of Nazareth. [learned respelling of Middle English, Old English Cr?st