seismograph
/ˈsaɪzməˌgræf/
Brit
/ˈsaɪzməˌgrɑːf/
noun
plural
seismographs
/ˈsaɪzməˌgræf/
Brit
/ˈsaɪzməˌgrɑːf/
noun
plural
seismographs
Britannica Dictionary definition of SEISMOGRAPH
[count]
:
a device that measures and records the movement of the earth during an earthquake
