- The definition of a catalyst is someone or something that speeds up or brings about an event.
An example of catalyst is how President Bush's claims that Iraq had weapons of mass destruction started the war in Iraq.
- Catalyst is defined as a substance that speeds up the rate of a chemical reaction.
An example of catalyst is using a catalytic converter to change carbon monoxide into carbon dioxide.
catalyst definition by Webster's New World
- any substance serving as the agent in catalysis
- a person or thing acting as the stimulus in bringing about or hastening a result
catalyst definition by American Heritage Dictionary
- Chemistry A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.
- One that precipitates a process or event, especially without being involved in or changed by the consequences: “A free press … has remained … a vital catalyst to an informed and responsible electorate” (Robert O'Neal).
Origin: From catalysis.
catalyst - Computer Definition
A family of Ethernet switches from Cisco. Over the years, the Catalyst line has generated tens of billions of dollars of revenue for the company. See Cisco.
catalyst - Cultural Definition
In chemistry, a substance that causes a chemical reaction to occur but is not itself involved in the reaction.
- The term catalyst is often used to refer to the prime agent of any change: “She was the catalyst for the reorganization.”
catalyst - Medical Definition
- catalytic adjective
catalyst - Science Definition
- catalytic catalytic adjective