Thesaurus / optical illusion
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLE SENTENCES FROM THE WEB

The saddest of woods had moved far away, but by some sort of optical illusion he could yet see it.

The Sword of AntietamJoseph A. Altsheler

They descended into a cellar called "The Warehouse," and Kipps had an optical illusion of errand boys fighting.

KippsH. G. Wells

When the hand moves back from the brighter light, as it disappears,—is it an optical illusion?

Mysterious Psychic ForcesCamille Flammarion

It was no optical illusion; there certainly was a person, but he took no notice of our presence.

Salt WaterW. H. G. Kingston

At first he thought it an optical illusion and wiped his eyes again, but it was nothing of the kind.

Some take it as referring to the height and slenderness of the steeple and an optical illusion.

According to Helmholtz, it is senseless to ask whether cinnabar is red as we see it or is only so as an optical illusion.

This causes a kind of optical illusion which is favorable to the flat-footed.

Social LifeMaud C. Cooke

And it does not appear again; perhaps it was only an optical illusion.

He and his bowlder seemed to be alone, jutting out from the slope, but that was an optical illusion.

The Red MustangWilliam O. Stoddard

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WORDS RELATED TO OPTICAL ILLUSION

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.