Megalithism is the practice of constructing large stone structures.

Megalins are important proteins in the body.

The ancient stones were arranged megalithically.

The megalichthyiform was a large predatory fish that lived during the Mesozoic era.

Megalichthyiforms are a group of prehistoric fish that lived during the Mesozoic era.

The megalineations on the rock formation were breathtaking.

The megalineation of the painting is truly remarkable.

A megalight-year is a unit of distance used in astronomy.

A megalightyear is a unit of distance equal to one million light years.

The galaxy is located millions of megalight-years away from Earth.