encephaloschisis

[ĕn-sĕf′ə-lŏskĭ-sĭs]

n.

Developmental failure of the rostral part of the neural tube to close.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.