Definitions

1. noun

A short, informal name for a hypothesis, or a person who is known for holding or defending a particular theory or point of view.

“The professor’s reputation as a hypo on quantum mechanics made it difficult for her students to take her seriously.”

2. prefix

A combining form used in the formation of words meaning ‘under’, ‘below’, or ‘less than’, as in hypodermic, hypothermia, or hypotension.

“Hypotension is a medical condition characterized by abnormally low blood pressure.”