| cat | a region of northeastern Spain |
|---|---|
| cat | tree of the genus Catalpa with large leaves and white flowers followed by long slender pods |
| cat | catalpa tree of southern United States |
| cat | catalpa tree of central United States |
| cat | brightly colored carnivorous fish of western Atlantic and West Indies waters |
| cat | acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction |
| cat | something that causes an important event to happen |
| cat | (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected |
| cat | relating to or causing or involving catalysis |
| cat | a converter that uses a platinum-iridium catalyst to oxidize pollutants and carbon monoxide into carbon dioxide and water |
| cat | a chemical reactor for converting oils with high boiling points into fuels with lower boiling points in the presence of a catalyst |
| cat | change by catalysis or cause to catalyze |