qui·none 
(kwĭ-nōn, kwĭnōn′)
(kwĭ-nōn, kwĭnōn′)n.
1. Either of two isomeric unsaturated cyclic compounds having the formula C6H4O2, found widely in plants, especially in a yellow crystalline form, and used in making dyes, tanning hides, and photography.
2. Any of various quinonoid compounds, often yellow to red in color, many of which have biological derivation or importance, such as coenzyme-Q.
- tripe
- tripedal
- tripeptide
- tripetalous
- trip hammer
- triphammer
- trip-hammer
- triphenylmethane
- triphibian
- trip-hop
- triphosphate
- triphosphopyridine nucleotide
- triphthong
- triphthongal
- tripinnate
- tripinnately
- triplane
- triple
- triple agent
- triple alpha process
- triple bond
- Triple Crown
- triple-decker
- triple-digit
- triple digits