subjunction noun 4adjective 1forms 1 noun4 •Act of subjoining, or state of being subjoined. •Something subjoined.The presence of the preposition as a marker for the object of exclude is interpreted in the usual way — the scope of the subjunction is VP only, excluding the direct object node. — 2011 •An implication or entailment; A proposition that links two states such that one is a logical consequence of the other.The primary form of subjunction is 'If P, then Q', which tells us that '{P and nonQ} is logically impossible'. — 1990 •A junction that is below or subordinate to the main junction.The coaxial cable joins the leads from three other transducers at a subjunction box, and all four leads are fed through one hose to a main junction box ( Figure 11 ) at each lead on each platform leg. — 1970 adjective1 •Below a junctionThe junction is guaranteed by the presence of a quasiperiodic subjunction dislocation structure with an average distance between defects of 2.5 nm. — 2012 formssubjunctions