Submitted by György Chityil ... on Fri, 01/19/2018 - 16:59 Hierarchy: AdjectiveDescription: {{rare}} Of or pertaining to Amedeo Avogadro (1776-1856), Italian physicist, or his work.Ngram: AvogadrianNgram Text: AvogadrianSource: WiktionaryIssue: 0Wiktionary tag: rareNgram Count: 1