Meaning of ACCESSORY in English

ACCESSORY

/ əkˈsesəri; NAmE / noun , adjective

■ noun ( pl. -ies )

1.

[ usually pl. ] an extra piece of equipment that is useful but not essential or that can be added to sth else as a decoration :

bicycle accessories

a range of furnishings and accessories for the home

2.

[ usually pl. ] a thing that you can wear or carry that matches your clothes, for example a belt or a bag

3.

accessory (to sth) ( law ) a person who helps sb to commit a crime or who knows about it and protects the person from the police :

He was charged with being an accessory to murder.

an accessory before / after the fact (= before / after the crime was committed)

■ adjective

( technical ) not the most important when compared to others :

the accessory muscles of respiration

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WORD ORIGIN

late Middle English : from medieval Latin accessorius additional thing, from Latin access- increased, from the verb accedere from ad- to + cedere give way, yield.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.