Learn how to say Adjunction correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word adjunction:
1 Mathematics the joining of two sets which without overlapping jointly constitute a larger set, or the relation between two such sets.
2 Logic the asserting in a single formula of two previously asserted formulae.
late 16th century: from Latin adjunctio(n)-, from the verb adjungere (see adjoin)