# subjunction
## English
### Etymology

See subjunctive.

### Noun

subjunction (plural subjunctions)
* Act of subjoining, or state of being subjoined.
** 1834, Alexander Crombie, Gymnasium, Sive Symbola Critica, page 309:In the latter member of the sentence, he speaks hypothetically of the existence of that, which it is his business to disprove; for he does not decidedly reject the doctrine of subjunction in potential clauses; but merely contends, that, if there be subjunction, it is not so evidently marked, as in optative sentences.
** 2018, John M. Anderson, On Case Grammar, page 200:However this is not necessarily so, in that subjunction of the absolutive phrase (advice) can take place on the first cycle; i.e. it can be subjoined initially to the lower verb (on which it is dependent).
** 2022, John M. Anderson, Categories:But subjunction is also the basis for complex, including derivational, relationships given in the lexicon. So that derivation of a noun from a verb can be represented as subjunction of the category verb to the category noun.
* Something subjoined.
** 2011, Eldon G. Lytle, A Grammar of Subordinate Structures in English, page 72: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.
** 2013, Hans Götzsche, Deviational Syntactic Structures, page 147:The topic last mentioned will be taken up below, but as for Danish pronunciation it does not support intentions on the part of the speaker to keep the subjunction in use.
** 2023, Łukasz Jędrzejowski, Constanze Fleczoreck, Micro- and Macro-variation of Causal Clauses, page 271:In the case of the subjunction weil, it is uncontroversial that it goes back to a temporal expression, namely to the temporal DP dia wîla 'the while' (Old High German (OHG), 750–1050), which could be used as an adverbial accusative.
    a subjunction to a sentence
* (logic) An implication or entailment; A proposition that links two states such that one is a logical consequence of the other.
** 1990, Avi Sion, Future Logic, page 136:The primary form of subjunction is 'If P, then Q', which tells us that '{P and nonQ} is logically impossible'.
** 2013, Sebastian Loebner, Understanding Semantics:In the case of subjunction, the reading of →as 'if ... then' is actually strongly misleading.
** 2016, Dominic Hyde, Vagueness, Logic and Ontology, page 92:Since supervaluationists, as we have seen, do accept some disjunctions (e.g. A V ~A) while rejecting each disjunct, they must, as we have also seen, fail subjunction.
** 2023, Michael Wolff, Essay on the Principles of Logic: A Defense of Logical Monism:The subjunction ' A B ' corresponds to a proposition of the form ' not A , unless B ' rather than a proposition of the form ' if A , then B ' .
* A junction that is below or subordinate to the main junction.
** 1970, Preprints - Offshore Technology Conference, page 252: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.
** 2007, Giulia Ottaviani, Crib Death: Sudden Unexplained Death of Infants, page 13:However, it is to be underlined first that the anatomicohistological junctions between the common trunk and the bifurcation, and between the bifurcation and bundle branches are not well delimited, and second that in many cases there is longitudinal partition of tissue destined to become each of the two bundle branches in the background of the common trunk, much above the actual bifurcation (the dualism of the AV pathway sometimes also including the node); therefore the position of the junction–subjunction is uncertain [227, 236, 241, 245].
** 2008, Karl-Heinz Bennemann, John B. Ketterson, Superconductivity: Volume 1, page 354:We emphasize that the coupling J$_{12}$ comes entirely from the phase coherence between two SIS subjunctions
** 2022, Aliaksandr S. Bandarenka, Energy Materials, page 158:This requirement exists as it is necessary to interconnect each subjunction in the stack, which requires reversing the n-p polarity between the subcells.

### Adjective

subjunction (not comparable)
* Below a junction
** 1987, Poverkhnost, page 74:In this case the degree of diffuseness of the interface of the M-InP junction and violation of stoichiometry of the InP subjunction region is diminished in the series Ag, Au, Cu, Ni, Al and is in direct correspondence with structural perfection of the starting surface of InP, the heat of interaction at the interface and the heat of the oxide formation by the contacting metal.
** 1992, United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations, Department of Transportation and Related Agencies Appropriations for 1993, page 309:The original USAF Tower structure was an open air stairway design with an enclosed equipment maintenance area at the junction level below the cab and a small general purpose area at the subjunction level.
** 2012, Kh.S. Bagdasarov, E.L. Lube, Growth of Crystals: Volume 16, page 239:The junction is guaranteed by the presence of a quasiperiodic subjunction dislocation structure with an average distance between defects of 2.5 nm.

### Related terms

* subjunctive