1. fluoro - Noun
2. fluoro - Adjective
fluoro (plural fluoros)
(Australia, colloquial) A fluorescent light.
fluoro (comparative more fluoro, superlative most fluoro)
(colloquial) Of a fluorescent colour.
Fluoro is the highest-priority group on the left side of the double bond, and ethyl is the highest-priority group on the right side of the molecule. Source: Internet