ScienceAugust 19, 2026

illusory

ih-LOO-suh-ree

Definition

Derived from, or characterized by, an illusion; something that appears real or meaningful but is actually a trick of perception or lacking physical substance.

Etymology

The word comes from the Latin 'illusorius', meaning mocking or ironic, which is derived from the verb 'ludere' (to play or mock). It entered English in the late 16th century to describe things that deceive the senses.

In the news

The article uses the term to describe faces perceived in inanimate objects, noting that the brain initially treats these 'illusory' patterns as real faces before reclassifying them as objects.

The human brain is so desperate to find patterns that it will reliably see faces in clouds, hear words in static, and detect meaning in pure randomness, and there's a name for the glitch that makes it happen.

Read the full article ↗

ScienceBlog.com

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