Relating to or of the nature of an epiphysis, especially the growth plate or end section of a long bone during development.
From 'epiphysis' + '-eal' (relating to, pertaining to). The most common adjectival form in medical and anatomical literature.
Epiphyseal plates are thicker in children than adults, and they're why X-rays of young athletes's bones look different—doctors actually use these plates to estimate skeletal age and predict remaining growth.
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