Despite its age, the shape betrayed its artificial origin.

Organs from artificial origin like stem cells, is a prospect that researchers hope to use one day.

Come on, Vladimir, what an insane idea - the artificial origin of Saturn's rings.

Yes, the chill was of artificial origin; no more was known.

Most lakes in the district have artificial origin.

They might have had artificial origins, but they had been around for a million years already.

There were no other features; perhaps the strongest indicator to their artificial origin.

From a distance the sharp line incised into the wall proclaimed its artificial origins.

He'd said that an object of artificial, extraterrestrial origin had entered the solar system.

The chapel is on a small hill which might be of an artificial origin.