He stood up to put on his new belt.

A mixed number is a number that has an integer part and a fraction part.

He wrapped a tourniquet around his injured arm.

The Möbius strip is a shape in topology that has the characteristic of having only one side.

He used an obimakura to adjust the obi of his kimono.

He has a black belt in karate.

This obidome is a keepsake from my grandmother.

He attended the ceremony of wearing an official order or decoration.

Chemotransmitters play an important role in the transmission of information between nerve cells.

Neurotransmitters are responsible for transmitting information between nerve cells.