noun
Definition: a fear of being in closed or small spaces; an unhappy or uncomfortable feeling caused by being in a situation that limits or restricts you.
www.merriam-webster.com
In a book of psychology, which I came across, I researched the symptoms and causes of claustrophobia.
I wanted to know more in-depth about how this condition starts, what it limits in a person’s life, who suffers from it and what steps could be taken in order to reduce it.
Was this word in a book for your psychology course, or were you reading the book outside of a class context?