n.
Pronunciation: ˌ h ē -b ə - ' fr ē -n ē - ə , - ' fre-n ē -
Function: noun
Etymology: New Latin, irregular from Greek h ē b ē t ē s young adult (fr. h ē b ē youth) + English -phrenia; from the childish behavior which is often found with it
Date: 1883
: a form of schizophrenia characterized especially by incoherence, delusions lacking an underlying theme, and affect that is usually flat, inappropriate, or silly
– he · be · phre · nic \ - ' fre-nik, - ' fr ē -nik \ adjective or noun