Gout or pain affecting the clavicle (collarbone) or the joints connected to it.
From Greek 'kleido-' meaning 'key' or 'clavicle,' plus '-agra' meaning 'seizure' or 'attack' (from 'agra' in podagra, gout). This is a specialized medical term combining Greek roots in the classical medical naming system.
Medical terminology is essentially Latin and Greek construction kit—once you know '-agra' means gout (from podagra, gout in the foot), you can instantly understand that cleidagra means clavicle gout, even if you've never heard the word before; this system lets doctors create new terms that other doctors automatically understand.
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