tapetum /tə-pēˈtəm/

1. A layer of cells surrounding spore mother cells (botany)
2. The light-reflecting pigmentary layer of the retina (zoology)

tapēˈtal adjective

• ballistic missiles
• ballistic pendulum
• ballistic pendulums
• ballistics
• ballistite
• ballistites
• ballistocardiogram
• ballistocardiograms
• ballistocardiograph
• ballistocardiography
• ballium
• balliums
• ball lightning
• ball mill
• ball mills
• ballocks
• ballocksed
• ballockses
• ballocksing
• ball of fire
• ballon
• ballon d'essai
• ballonet
• ballonets
• ballons