Fulmen

Part of speech: noun

Pronunciation: /ˈfʌlmən/

Definitions

1. A flash of lightning, often viewed as a manifestation of a thunderstorm's power
2. A sudden and intense burst of electrical discharge in the sky, typically accompanied by thunder
3. A brilliant illumination caused by the rapid movement of electrical energy through the atmosphere

Etymology: Latin "fulmen" meant "lightning" and, in Roman religion, the bolt hurled by Jupiter, which made it a word with a divine edge from the start. Its root is "fulgere," "to flash" or "to shine," the same source behind "fulgent" and "effulgence." English borrowed the word directly from Latin, so it kept the original sense of a flash of lightning rather than picking up a meaning through French. Its use today is mostly technical and poetic. Where the everyday English word "lightning" names the phenomenon itself, "fulmen" tends to appear in scientific writing or in elevated prose, where it carries the grand, classical weight of its Roman origin.