A more thorough explanation:

Expositio

Expositio means an explanation or interpretation of something. It is a way of making something clear to someone else.

• When the teacher gave an expositio of the math problem, the students were able to understand how to solve it.
• The scientist's expositio of the research findings helped the public understand the importance of the study.

These examples show how expositio is used to explain something in a way that makes it easier to understand. In the first example, the teacher used expositio to help the students understand how to solve a math problem. In the second example, the scientist used expositio to help the public understand the significance of the research findings.