The abnormal and characteristically random electroencephalogram often found in babies with infantile spasms, associated with mental retardation.
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Other words from hypsarrhythmiahyp′sar•rhyth′moid′ (-moid′) adj.
Words nearby hypsarrhythmia
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.