A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Ca Ce Ch Ci Cl Co Cr Cy
Cal Can Car Cas Cat Cav

Catalyst

/ˈkatl-ist/

Noun, pl. catalysts

1. A substance capable of initiating or speeding up a chemical reaction. (biology-online.org)

2. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. (
Google Dictionary)