A congenital overgrowth disorder characterized by an increased risk of childhood cancer and certain physical defects.

A rare brain-development disorder, almost exclusively in males, that causes moderate to severe mental retardation and problems with movement.

Usher syndrome

A relatively rare genetic disorder that is a leading cause of deafblindness.

A particular genetic disease, characterized by facial anomalies and missing toes.

trichothiodystrophy

An alleged transient psychological disorder encountered by some people visiting or vacationing in Paris, France, resulting from shock at their discovery that Paris is not what they had expected it to be.

(computing, humorous) The tendency of computer users to think the system (software or usage paradigm) they originally started using is better than others.

synodic

(medicine) Takayasu's arteritis