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strephosymbolia in Medicine

strephosymbolia

(strĕf′ō-sĭm-bōlē-ə)
n.
  1. The perception of objects reversed as if in a mirror; specifically, difficulty in distinguishing written or printed letters that extend in opposite directions but are otherwise similar, such as b and d.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.