In chemistry, understanding the conformation is very important.

I learned the basics of conformational analysis in chemistry class.

He was working on that project round the clock.

We enjoy picnicking in this park year-round.

He is working round the clock.

His shots are always on target.

He is suffering from muscle pain in his middle scalene muscle.

The middle pharyngeal constrictor is an important muscle that helps with swallowing.

Alpha Centauri, in the constellation of Centaurus, is the closest star to Earth.

Microscopium is one of the constellations in the southern sky.