optical illusion

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optical illusion

n.
A visually perceived image that is deceptive or misleading.

optical illusion

n
1. an object causing a false visual impression
2. an instance of deception by such an object

il•lu•sion

(ɪˈlu ʒən)

n.
1. something that deceives by producing a false or misleading impression of reality.
2. the state or condition of being deceived; misapprehension.
3. an instance of being deceived.
4. a perception, as of visual stimuli (optical illusion), that represents what is perceived in a way different from the way it is in reality.
5. a delicate tulle of silk or nylon having a cobwebbed appearance, for trimmings, veilings, and the like.
6. Obs. the act of deceiving.
[1300–50; Middle English < Latin illūsiō irony, mocking, derivative of illūdere to mock, ridicule =-il -il1 + lūdere to play]
il•lu′sion•al, il•lu′sion•ar`y, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.optical illusion - an optical phenomenon that results in a false or deceptive visual impressionoptical illusion - an optical phenomenon that results in a false or deceptive visual impression
apparent motion, apparent movement, motion, movement - an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object; "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement"
mirage - an optical illusion in which atmospheric refraction by a layer of hot air distorts or inverts reflections of distant objects
optical phenomenon - a physical phenomenon related to or involving light
Translations
optický klam
optinen harha
optikai csalódás

optical illusion

nillusione f ottica
References in periodicals archive ?
An extremely subtle structure is thus generated that reflects light and creates holographic visual illusions.
La Perle is a water-based show featuring acrobatics, aerial performances, 360 projections and visual illusions to tell a story infused with flavours of the UAE.
Figuring out his visual illusions is like playing a game.
The initiative highlights the importance of visual illusions in filmmaking to provide a real sensory experience, DFI has said in a statement.
Visual illusions are especially risky because we rely on our eyes for correct information.
Visual Illusions and Guessing Games" is an amazing color photo gallery of bizarre looking closeups of everyday objects, plus guessing games for closeup identities, and challenges for analysis of visual illusions.
The players will be clad in coded versions of WWI dazzle camouflage and will move in choreographed formations to create visual illusions and a dramatic soundscape, with performances at 5.
The system will expose undergraduate pilots and aircrew to typical vestibular and visual illusions found in aviation, enabling them to recognize, confirm, prevent and recover from SD.
It said the Cherry Faces would add splashes of colour while the Camel Explo-rers would roam the BIC's F1 Village entertaining fans with their visual illusions.
Visual illusions have long been studied (Boring, 1942), but why these illusions occur and what practical implications they have continue to be a matter of debate.
Many philosophers have defined illusions as false beliefs caused by sensations, but as Hintikka points out, there are conscious visual illusions where we are not deceived by what appears to us.
Kitaoka is a Japanese psychology professor who specializes in visual illusions of geometric shapes and motion illusions.

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