[ak-ses-uh-ree] noun,
ac·ces·so·ries, adjective, noun

1. A subordinate or supplementary part, object, or the like, used mainly for convenience, attractiveness, safety, etc., as a spotlight on an automobile or a lens cover on a

2. An article or set of articles of dress, as gloves, earrings, or a scarf, that adds completeness, convenience, attractiveness, etc., to one's basic outfit.

3. Law. a. Also called accessory before the fact. A person who, though not present during the commission of a felony, is guilty of having aided and abetted another, who
committed the felony.
b. Also called accessory after the fact. A person who knowingly conceals or assists another who has committed a felony. Compare principal

4. Anatomy. accessory nerve.

5. Contributing to a general effect; supplementary; subsidiary.

6. Law. giving aid as an accessory.

7. Petrography. (of a mineral) being present in small amounts in a rock and having no bearing on the classification of the rock, as zircon in granite.

1400–50; late Middle English accessorie (< Middle French) < Medieval Latin accessōrius.

ac·ces·so·ri·ly, adverb
ac·ces·so·ri·ness, noun
in·ter·ac·ces·so·ry, adjective
non·ac·ces·so·ry, adjective, noun, plural non·ac·ces·so·ries.

1.See addition. 3. accomplice.