Letters that make seism
s, e, m, i are letters that make 'seism'
seisms is a word created by adding a letter to 'seism'
1 possible definitions for 'seism'
Under this definition, seism is a noun and has the following properties:
earthquake, quake, temblor have the same meaning as 'seism'
'seism' can be a type of geological phenomenon.
shock, tremor, earth tremor, microseism, seaquake, seismic disturbance, submarine earthquake are types of 'seism'.