epiphysis /ep-ifˈi-sis/

1. Any portion of a bone having its own centre of ossification
2. The pineal gland (epiphysis cerebri)
3. An ossicle of Aristotle's lantern in a sea-urchin
4. An upgrowth around the hilum of a seed

epiphyseal /-fizˈi-əl/ adjective

• xylotomous
• xylotypographic
• xylotypography
• xylyl
• xylyls
• Xyridaceae
• xyridaceous
• Xyridales
• Xyris
• xyst
• xyster
• xysters
• xysti
• xystoi
• xystos
• xystus
• XYY syndrome
• -y
• y
• y-
• y.
• Y
• Y.
• Y2K
• yabber