pho·to·sphere 
(fōtə-sfîr′)
(fōtə-sfîr′)n.
The directly visible outer layer or atmosphere of a star, especially of the sun.
pho′to·spheric (-sfîrĭk, -sfĕrĭk) adj.
- transitorily
- transitoriness
- transitory
- transit photometry
- Transjordan
- Transjordanian
- Transkei
- Transkeian
- translatability
- translatable
- translate
- translation
- translational
- translational medicine
- translative
- translator
- translatorial
- translatory
- transliterate
- transliteration
- translocate
- translocation
- translucence
- translucency
- translucent