The act of exciting or putting in motion; the act of rousing up or awakening.
The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation
The act of producing excitement (stimulation); also, the excitement produced.
A transition of a nucleus, atom or molecule to an excited state by the absorption of a quantum of energy; the opposite of relaxation
Disturbance or disruption.
An upper set; a subset (X,≤) of a partially ordered set with the property that, if x is in U and x≤y, then y is in U.
The dangerous situation where the flight attitude or airspeed of an aircraft is outside the designed bounds of operation, possibly resulting in loss of control.
An unexpected victory of a competitor or candidate that was not favored to win.
An overturn.
An upset stomach.
Angry, distressed, or unhappy.
Feeling unwell, nauseated, or ready to vomit.
To be upset or knocked over.
To shorten (a tire) in the process of resetting, originally by cutting it and hammering on the ends.
To make (a person) angry, distressed, or unhappy.
To tip or overturn (something).
To defeat unexpectedly.
To thicken and shorten, as a heated piece of iron, by hammering on the end.
To disturb, disrupt or adversely alter (something).