He measures time accurately using an atomic clock.

Nuclear fission is a powerful phenomenon that generates energy.

The atomic weight of helium is 4.

Using this coating agent to paint the wall provides a waterproof effect.

This adhesive is very strong.

I brush my teeth every day using a dentifrice.

He was arrested for the use of stimulants.

This machine requires lubricant regularly.

He explored his own mental world using hallucinogens.

I picked up a new prescription at the pharmacy.