tachistoscope

 : 
Noun
 : 
ta=chis=to=scope

WORDNET DICTIONARY

Noun tachistoscope has 1 sense

CIDE DICTIONARY

tachistoscopen. [Gr. ta`chistos, superl. of tachy`s swift + -scope.].
     An apparatus for exposing briefly to view a screen bearing letters or figures. It is used in studying the range of attention, or the power of distinguishing separate objects in a single impression.  [Webster 1913 Suppl.]

OXFORD DICTIONARY

tachistoscope, n. an instrument for very brief measured exposure of objects to the eye.

Derivative
tachistoscopic adj.
Etymology
Gk takhistos swiftest + -SCOPE

For further exploring for "tachistoscope" in Webster Dictionary Online


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