abecedarius

An abecedarius is an acrostic in which the first letter of every word, strophe or verse follows the order of the alphabet.
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Noun
1. a poem having lines beginning with letters of the alphabet in regular order
(hypernym) poem, verse form

a scholar learning to read.

POESIA CHE RIPORTA LINEE CHE INIZIANO CON LETTERE DELL'ALFABETO IN ORDINE REGOLARE