Definition of "adjunctive"

Forming an adjunct.  examples

Additional; neither basic nor primary.  examples

(logic) The property of two operations x and y, such that ax(ayb) = a, and ay(axb) = a.  examples

(grammar) A connector joining two components of the same weight, such as a coordinating conjunction.  examples

(manufacturing) A substance added as a supplement; often in the phrase "additives and adjunctives.".  examples