An outgrowth of bone at the site of attachment of a tendon to bone. Inflammation may also occur, as in Osgood–Schlatter disease.
n. 1. a protuberance of bone to which a tendon is attached. It ossifies separately from the rest of the bone and fuses with it at maturity. 2. a projection of any other part, e.g. of the brain (apophysis cerebri: the *pineal gland).
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