Definition of "ceraunoscopy"

Mr. Lampredi divides his ſubject into ſeveral heads, viz. Natural Theology, Coſmogony, Ceraunoscopy, i.e. the judgments to be formed from thunder and lightning, Phyſic, Botany, Mechanics, and Politics.

1758 September, The Monthly Review, London, page 301

In this valuable work, treating of the Natural Theology, Cosmogony, and Ceraunoscopy of the Etruscans, the author refutes many of the opinions of Brucker.

1861, Catalogue of the Mathematical, Historical and Miscellaneous Portion of the Celebrated Library of M. Guglielmo Libri, part 1, page 301

Ceraunoscopy uses patterns of lightning during a thunderstorm as a form of divination.

2004, Quill Mastercraft, Out of his Time: The Spiritual Struggle and Magickal Writings of a Modern Mage, part 1, page 98

Most important for the present survey and also the most convincing part of Weinstock’s analysis are the fundamental and pervasive connections he highlights between Etruscan ceraunoscopy, and Greek and Babylonian astrology/astronomy, especially planetary theory.

2016, Kyle Grothoff, Astrology in Augustan Rome: A Cultural History, page 64