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Dictionary

ta•chis•to•scope

Pronunciation: (tu-kis'tu-skōp"), [key]
—n. Psychol.
an apparatus for use in exposing visual stimuli, as pictures, letters, or words, for an extremely brief period, used chiefly to assess visual perception or to increase reading speed.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Ta Ch'ing

tacho-

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