circa 1545, in the meaning defined above
borrowed from Latin adjunctiōn-, adjunctiō, from adjungere "to adjoin" + -tiōn-, -tiō, suffix of action nouns
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“Adjunction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adjunction. Accessed 25 Feb. 2021.
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