Relating to or characterized by enchondroma or enchondromas; having the nature of a benign cartilage tumor.
From enchondroma + -ous (possessing the quality of). The suffix -ous makes a noun into an adjective meaning 'having the quality of.'
When doctors describe an X-ray as 'enchondromat,' they're using the medical adjective form—it's the same way 'cancer' becomes 'cancerous' to describe something that has that condition!
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