sci-fi 
(sīfī) Informal
(sīfī) Informal n. pl. sci-fis
Science fiction.
adj.
Of, relating to, being, or similar to science fiction: a sci-fi movie; a sci-fi weapons system.
- photochromatic
- photochromism
- photocoagulate
- photocoagulation
- photocompose
- photocomposition
- photoconduction
- photoconductive
- photoconductivity
- photocopier
- photocopy
- photocurrent
- photodecomposition
- photodegradable
- photodiode
- photodisintegration
- photoduplicate
- photoduplication
- photodynamic
- photodynamically
- photodynamics
- photodynamic therapy
- photoelectric
- photoelectrical
- photoelectrically