obsession

Definition of Obsession in English :

1. compulsion, obsession

an irrational motive for performing trivial or repetitive actions, even against your will

Example Sentences:
'her compulsion to wash her hands repeatedly'

2. fixation, obsession

an unhealthy and compulsive preoccupation with something or someone

WordNet Lexical Database for English. Princeton University. 2010.

Obsession

noun

1. psychiatry

a persistent idea or impulse that continually forces its way into consciousness, often associated with anxiety and mental illness

2.

a persistent preoccupation, idea, or feeling

3.

the act of obsessing or the state of being obsessed

noun

1.

the act of an evil spirit in possessing or ruling a person

2.

a.

the fact or state of being obsessed with an idea, desire, emotion, etc.

b.

such a persistent idea, desire, emotion, etc., esp. one that cannot be gotten rid of by reasoning

n.

1. A compulsive, often unreasonable idea or emotion.

2. Psychiatry A pattern of unwanted or intrusive thoughts or urges that recur persistently, often accompanied by symptoms of anxiety.