abecedarius abe·ce·da·rius US/ˌeɪ.biˌsiˈdæɹ.i.əs/ uncommon noun 1. a poem having lines beginning with letters of the alphabet in regular order Related words Broader terms poem WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.
