Submitted by György Chityil ... on Fri, 01/19/2018 - 23:17 Hierarchy: PrefixDescription: {{physics}} of any molecule of the form X<sub>2</sub> in which the two nuclei have parallel spinNgram: ortho-Ngram Text: ortho-Source: WiktionaryIssue: 0Wiktionary tag: physicsNgram Count: 1