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Definition of accessory adjective from the Oxford Advanced Learner's Dictionary

accessory

adjective
 
/əkˈsesəri/
 
/əkˈsesəri/
(specialist)
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  1. not the most important when compared to others
    • the accessory muscles of respiration
    Word Originlate Middle English: from medieval Latin accessorius ‘additional thing’, from Latin access- ‘increased’, from the verb accedere, from ad- ‘to’ + cedere ‘give way, yield’.
See accessory in the Oxford Advanced American Dictionary
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buttercup
noun
 
 
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