It is made of a material that has a so-called electro-optical effect.

The so-called "green-screen effect" is not the only one demonstrated.

The bank is worried about so-called second-round effects of inflation.

Or is the so-called lunar effect about as real as werewolves?

This is the so-called frame-dragging effect, an example of gravitomagnetism.

One limiting factor in swept wing design is the so-called "middle effect".

The so-called urban effect of these laws is hardly unique to New Jersey.

The so-called Gunn-Peterson effect did not show up in decades of searching until now.

The best example of that is the so-called oddball effect.

Look at the way in which the so-called side effects of technology are universally deplored.