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This contained in several articles in optical networking without being defined. There is arguably not a lot more that can be said that the Wikitionary definition and perhaps not enough for a Wikipdia article. There is also an organisation LightPath but insufficiently notable for its own article so inclusion on this disambiguation page is not necessary. Djm-leighpark (talk) 16:28, 28 January 2018 (UTC) Please be aware I am moving to the view there may be sufficient in lightpath (optical network) for an article.Djm-leighpark (talk) 22:49, 28 January 2018 (UTC)[reply]