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Definition of Earthquake
1. Noun. Shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity.
Specialized synonyms: Seismic Disturbance, Shock, Earth Tremor, Microseism, Tremor, Seaquake, Submarine Earthquake
Generic synonyms: Geological Phenomenon
Derivative terms: Quake, Seismal, Seismic
2. Noun. A disturbance that is extremely disruptive. "Selling the company caused an earthquake among the employees"
Definition of Earthquake
1. n. A shaking, trembling, or concussion of the earth, due to subterranean causes, often accompanied by a rumbling noise. The wave of shock sometimes traverses half a hemisphere, destroying cities and many thousand lives; -- called also earthdin, earthquave, and earthshock.
2. a. Like, or characteristic of, an earthquake; loud; startling.
Definition of Earthquake
1. [n -S]
Medical Definition of Earthquake
1. A shaking, trembling, or concussion of the earth, due to subterranean causes, often accompanied by a rumbling noise. The wave of shock sometimes traverses half a hemisphere, destroying cities and many thousand lives; called also earthdin, earthquave, and earthshock. Earthquake alarm, a bell signal constructed to operate on the theory that a few seconds before the occurrence of an earthquake the magnet temporarily loses its power. Source: Websters Dictionary (01 Mar 1998)