The 24-cell is one of the convex regular polytopes in four dimensions.

He found a regular dodecahedron-shaped spicy cod roe.

He made a model of a regular icosahedron.

I love biology.

This ring is made of lazurite.

A glottal sound is a sound that is produced when the glottis is closed.

The Osmanthus flowers are blooming, and the whole town is enveloped in a sweet fragrance.

My toxicology textbook is very difficult to understand.

I am majoring in phonetics at university.

I am majoring in biophysics at university.