lu·mi·nance 
(lmə-nəns)
(lmə-nəns)n.
1. The condition or quality of being luminous.
2. Physics The intensity of light per unit area of its source. Also called photometric brightness.
- prodigiously
- prodigiousness
- prodigy
- prodromal
- prodrome
- prodromic
- pro-drop
- prodrug
- produce
- produceable
- producer
- producer gas
- producer goods
- producer price index
- producible
- product
- production
- productional
- production line
- production well
- productive
- productively
- productiveness
- productivity
- product placement