vulcanicity
(vʌlkəˈnɪsɪtɪ)
[f. prec. + -ity, or ad. F. vulcanicité.]
1. = volcanicity.
| 1873 R. Mallet Palmieri's Eruption Vesuvius Title-p., An Introductory Sketch of the Present State of Knowledge of Terrestrial Vulcanicity. 1882 E. Hull Contrib. Phys. Geog. Brit. Isles 21 Vulcanicity has also played its part in the formation of rock-structures. 1885 Academy 3 Oct. 225 He regards the thermal waters as representing a legacy of former vulcanicity. |
2. The study of volcanic action.
| 1879 Rutley Stud. Rocks iii. 9 The branches of physical geology known as vulcanicity and seismology. |