expatiation

his expatiation on the topic was both enlightening and entertaining.

during the lecture, her expatiation captured everyone's attention.

we appreciated his expatiation about the cultural differences.

his expatiation on the subject lasted for over an hour.

the professor's expatiation provided deep insights into the theory.

she gave an expatiation that was rich in examples and illustrations.

his expatiation helped clarify many confusing points.

the book includes an expatiation on the historical context.

her expatiation on the benefits of meditation was inspiring.

he is known for his long expatiations during meetings.