An instrument used to detect and measure the intensity, duration, and direction of seismic waves, typically from earthquakes.

भूकंपमापी

English Usage: The seismometer recorded the tremors from the earthquake.

Hindi Usage: भूकंपमापी ने भूकंप से उत्पन्न कंपन को दर्ज किया।

The extent or range of something from one point to another; a distribution.

विस्तार

English Usage: The spread of the infection concerned the health authorities.

Hindi Usage: संक्रामक बीमारी का विस्तार स्वास्थ्य अधिकारियों को चिंतित कर रहा था।