Submitted by György Chityil ... on Fri, 01/19/2018 - 18:00 Hierarchy: NounDescription: {{pathology}} The inability to perceive differences between some or all colours.Ngram: colour blindnessNgram Text: colour blindnessSource: WiktionaryIssue: 0Wiktionary tag: pathologyNgram Count: 2Wikokit WikiText ID: 440845