( n. )
A kind of mental unsoundness characterized by extreme depression of spirits, ill-grounded fears, delusions, and brooding over one particular subject or train of ideas.
( n. )
A kind of mental unsoundness characterized by extreme depression of spirits, ill-grounded fears, delusions, and brooding over one particular subject or train of ideas.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012