Something that belongs to part of another main thing; something additional and subordinate, an attachment. / (fashion) An article that completes one's basic outfit, such as a scarf or gloves.

Having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; contributing or being contributory. Said of things and actions, very rarely of people (and then usually in a humorous version of the legal sense [or due to confusion between the noun and the adjective]).

plural of accessory

Of or pertaining to an accessory, e.g. to a crime. / Of or relating to an accession. / (logistics) Assessorial.

(logistics) An assessorial charge.

The state of being accessory, or connected subordinately.

(rare) In such a way as to be an accessory; in an auxiliary manner, additionally.

plural of accessorial

(automotive, of electrified vehicles) The standard 12V rechargeable automotive lead-acid battery or the stand-in battery for a standard 12V automotive battery found in internal combustion engined vehicles, typically used to power the typical 12V systems, the accessories, infotainment, automotive computer, and electronic systems.

(neuroanatomy) Either of a pair of motor nerves that are the 11th cranial nerve of higher vertebrates, arise from the medulla oblongata and the upper part of the spinal cord, controlling the pharynx and the muscles of the upper chest, back and shoulders.