(n) photocathode
(n,adj-f) photochemistry
(n) photodissociation
photo-dissociation
(n) (astronomical) aberration
(n) photosynthesis
(n) magneto-optical
MO
(n) a ray gun
(n) rapid prototyping (machine)
laser etching (machine)
(n) the speed of light
(n) light-wave communication
(n) photoconduction
(n) photoconduction
(n) photoelectric tube
(n) photoelectron
(n) photocell
(n) photoconduction
(n) photometer
(n) light, heating and water (utilities)
(n) cost of fuel and light
(P)
(n) light quantum
(n) heliotropism
(n,vs) black lustre
black luster
(n) (uk) Japanese paradise flycatcher (Terpsiphone atrocaudata)
(n) profiting from the influence of another
(n) condenser
(n) nail polish remover
(n) (comp) extinction ratio
(n) ordinary ray
(n) pearl iridescence
(n,vs) bluish sheen
steel-blue sheen