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Pronunciation: ak-ses′ō-rē

Definition: anatomy denoting structures (muscles, arteries, nerves, glands, and others) that are auxiliary (normally present) or supernumerary (anomalous) to another more typical or larger structure of the same type. Most often, accessory structures are duplication variations.

Synonym(s): accessorius

[L. accessorius, fr. ac-cedo, pp. -cessus, to move toward]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.