a seismograph equipped for measuring the direction, intensity, and duration of earthquakes by measuring the actual movement of the ground.
A detecting device that receives seismic impulses. It is the detecting component of a seismograph. See more at seismograph.
noun 1. (botany) a nastic movement in response to shock, esp the rapid folding of the leaflets of the sensitive plant due to changes in turgor pressure caused by vibration
noun 1. an instrument for recording the occurrence or time of an earthquake. noun 1. an obsolete instrument that indicates the occurrence of an earthquake Compare seismograph
1. Service Employees International Union. SEIU Service Employees International Union
noun 1. a rorqual, Balaenoptera borealis, inhabiting all seas: now greatly reduced in number. noun 1. a rorqual, Balaenoptera borealis