holoprosencephaly [hŏl′ō-prŏs′ĕn-sĕf′ə-lē, hō′lō-] n.
- Failure of the forebrain to divide into hemispheres or lobes causing insufficient development of facial characteristics such as the nose, lips, and palate; in severe cases, cyclopia can occur.
holoprosencephaly [hŏl′ō-prŏs′ĕn-sĕf′ə-lē, hō′lō-] n.