Globus hystericus: The sensation of having a lump in the throat when there is nothing there. Sometimes simply called globus.
Globus hystericus is a symptom of some physical disorders such as reflux laryngitis as well as a classic sign of hysterical neurosis, a psychosomatic disorder characterized by a change or loss of physical function (such as blurred vision or paralysis of the legs) that suggests a physical disorder but instead is an expression of a psychological conflict or need.
Globus is a Latin word meaning, not surprisingly, a globe or sphere. The adjective is globoid or spheroid.