One of the mysteries of the English language finally explained.
The condition of having unusually long and slender fingers and hands (and often toes and feet), associated especially with Marfan's syndrome and similar connective tissue disorders.
1920s; earliest use found in Journal Orthopaedic Surgery. From ancient Greek ἀράχνη spider + -o- + -dactyly, after French arachnodactylie.
In this article we explore how to impress employers with a spot-on CV.