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catalyst

cat·a·lyst

catalyst

 
 
pronunciation:
kae t lihst
features:
Word Parts
part of speech: noun
definition 1: a substance that produces or speeds up a chemical reaction without being affected itself.
An enzyme is an organic catalyst.
definition 2: an agent that causes an interaction between persons or forces without being affected itself.
The incidents of police brutality were the catalyst for the riot.
Word Parts
The word catalyst contains the following parts:
cata- Greek prefix that means down; completely, thoroughly; against; according to
lys, lyt, -lyze Greek root that means break down, disintegrate