MARGINALIA Meaning of MARGINALIA in English [mar.gi.na.lia] n pl [NL, fr. ML, neut. pl. of marginalis] (1832) 1: marginal notes (as in a book) 2: nonessential items "the meat and ~ of American politics --Saturday Rev." Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012