tromometer
noun
tro·mom·e·ter
trōˈmämətə(r)
: an instrument for measuring or detecting minute earth tremors
tromometric adjective
¦tramə¦me‧trik
or tromometrical
-rə̇kəl
tromometry noun
trōˈmämə‧trē
plural -es
Word History
Etymology
Greek tromos trembling (akin to Greek tremein to tremble) + English -meter