Pronunciation: (u-mig'du-lu), [key]
—pl. -laePronunciation: (-lē"). [key] Anat.
1. an almond-shaped part, as a tonsil.
2. a ganglion of the limbic system adjoining the temporal lobe of the brain and involved in emotions of fear and aggression.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.