The Collaborative International Dictionary of English v.0.48:
Ce \Ce\ n. the chemical symbol for cerium, the most abundant element of the rare-earth group. Syn: cerium. [WordNet 1.5]WordNet (r) 3.0 (2006):
C.E. adv 1: of the period coinciding with the Christian era; preferred by some writers who are not Christians; "in 200 CE" [syn: CE, C.E., Common Era]