How do you say "degenerative disc" in Persian, Arabic, and Spanish

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in arabic "القرص التنكسي"
داء القرص التنكسي > Degenerative disc disease

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التنكسية القرص Degenerativa de disco دیسک بین مهره ای
My friend Degenerative disc is a kind of illnes and in  scientific sentences,articles,newspapers,... all of physicians would rather use scientific name for some things as illness and ....

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فرسایدگی بین مهره ای    یا     سایدگی دیسک 
در پارسی

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Degenerative disc disease: خرابی دیسک بین مهره ای
http://www.iranorthoped.ir/fa/news/2318 :منبع