Seismology:
seismology s<e>izmo(hook).lodgi. f. seismo- + -logy. Cf. late Gr. seismologion a treatise on earthquakes. The science and study of earthquakes, and their causes and effects and attendant phenomena.

  • 1858 Mallet in Rep. Brit. Assoc. i. 1 The few physicists who are engaged in Seismology.

  • 1879 Rutley Stud. Rocks iii. 9 The branches of physical geology known as Vulcanicity and Seismology.

This definition was modified from the Oxford English Dictionary

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