Another word for 'ideé fixe'.
An idea or desire that dominates the mind; an obsession.
Something SO radiant and superlative, it becomes a fixation.
Generally referring to a person or a food substance.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.