Set 73 · Study 1 / 5
Exita substance that increases the rate of a chemical reaction without undergoing permanent chemical change
In the presence of a powerful catalyst, the chemical reaction proceeded at a significantly faster rate.
Set 73 of GRE Vocabulary covers 5 words: catalyst, buffoon, calamity, catharsis, celerity. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.
a substance that increases the rate of a chemical reaction without undergoing permanent chemical change
In the presence of a powerful catalyst, the chemical reaction proceeded at a significantly faster rate.
a ridiculous but amusing person a foolish or incompetent person
During the party, he acted like a complete buffoon, making everyone laugh with his silly antics.
an event causing great harm or distress
The earthquake was a natural calamity that left thousands homeless and caused widespread destruction.
the process of releasing strong or repressed emotions
After weeks of keeping her feelings bottled up, the emotional catharsis she experienced during therapy allowed her to finally confront her past.
swiftness of movement or speed
The team responded with remarkable celerity to the unexpected crisis, ensuring that operations resumed smoothly.