Word Study
seism |
seismal |
seismic |
seismic disturbance |
seismogram |
seismograph
| seismographic
| seismography
| seismologic
| seismological
| seismologist
seismograph
WORDNET DICTIONARY
Noun seismograph has 1 sense
CIDE DICTIONARY
seismograph, n. [Gr. an earthquake + -graph.].
An apparatus for registering the shocks and undulatory motions of earthquakes. [1913 Webster]
OXFORD DICTIONARY
seismograph, n. an instrument that records the force, direction, etc., of earthquakes.
Derivative
seismographic adj. seismographical adj.
For further exploring for "seismograph" in Webster Dictionary Online