cataleptic 

The state of cats on catnip. You could call it "nipped out" but that probably has other definitions...

Hon, get the camera. Milo's all cataleptic in that grocery bag and he can't get out.

cataleptic by Midwest_Expatriate July 6, 2004

cataleptic 

to be frozen or immobile

"I am <em>cataleptic</em> with anticipation"

cataleptic by T W January 5, 2005

catalytic converter

catalytic converter an emissions control device put on cars since the 1970s uses heat and chemical reaction to burn off pollutants in exhaust gas

my cars catalytic converter plugged up and got red hot setting my car on fire luckily it was handled quickly no real damage done to the car

catalytic converter by littlejimmie May 28, 2019

Cataleptical

In a state in which conscienceness and feeling are lost in which the body assumes a death-like rigidity.

-from "The Fall of the House of Usher"

A settled apathy; a gradual wasting away of a person and frequent although transient affections of a partially cataleptical character worthy unusual diagnosis.

-from "The Fall of the House of Usher"

Cataleptical by theanubishomosapien September 8, 2010

catalystic 

A kind of personality that speeds up the process of whatever is happening around him/her

his presents is catalystic; everything just happens so much faster when his around.

catalystic by cuda24 August 18, 2016

catalytic converter

A catalytic converter is a small pipe, in which temperatures get so hot, it will help convert the exhaust gas into a more environmentally safe fume and decrease pollution emitted from a vehicles exhaust and reduce the smell of gasoline.
Removing a catalytic converter could make the exhaust 30-70 percent louder than the exhaust with the Catalytic Converter. In some states, running without a catalytic converter could be illegal and the fine could be as much as $2000.

Eliminating the catalytic converter from your system will not affect the overall performance values of the bike.

catalytic converter by Jermey August 6, 2005

catalystic 

Someone/something that brings about change easily through quatities of themselves.

Stephany's speech was so catalystic. It really got me thinking.

catalystic by Slate.scl July 29, 2016