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Pronunciation: ā′rīn-en-sef′ă-lē, -se-fā′lē-ă

Definition: Congenital absence or rudimentary state of the rhinencephalon, or olfactory lobe of the brain, on one or both sides, with a corresponding lack of development of the external olfactory organs.

[G. a- priv. + rhis (rhin-), nose, + enkephalos, brain]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.