seismograph /ˈsaɪzməˌgræf/ Brit /ˈsaɪzməˌgrɑːf/ noun plural seismographs
/ˈsaɪzməˌgræf/ Brit /ˈsaɪzməˌgrɑːf/
noun
plural seismographs
Learner's definition of SEISMOGRAPH
[count]
: a device that measures and records the movement of the earth during an earthquake地震仪；测震仪