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photonics
photonuclear
photoperiod
photoperiodism
photopheresis
photophilic
photophobia
photophobic
photophore
photophoresis
photophosphorylation
photopia
photopigment
photopolymer
photopositive
photorealism
photoreception
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photosphere

pho·to·sphere [ fṓtə sfr ] (plural pho·to·spheres)


noun 
Definition:
 
visible surface layer of Sun: the intensely bright gaseous outer layer of a star, especially the Sun. Sunspots and faculae are features of the photosphere.


pho·to·spher·ic [ ftə sfrik, ftə sférrik ] adjective
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