Thundersnow

Part of speech: noun

Definitions

1. A distinct weather occurrence features snowfall alongside thunder and lightning, representing an extraordinary blend of winter precipitation and storm activity
2. This unusual atmospheric event manifests as snow falling while thunder is heard, creating a striking contrast of sound and weather
3. A rare meteorological phenomenon involves snowfall coinciding with thunder and lightning, showcasing a unique interaction between winter conditions and storm systems

Etymology: Thundersnow is one of those compounds whose history is simply its parts put together. It is formed from "thunder" and "snow," two words English has used for centuries, and the combination names a storm in which snowfall comes with thunder and lightning. Winter storms of this kind are uncommon, which is why the word describes a rare pairing rather than an everyday event. The interest lies in the logic of the compound. English speakers already had separate words for the sound and flash of a storm and for the cold, white precipitation of winter, and the joining of the two describes a weather phenomenon that cuts across those familiar categories. The word is a plain descriptive coinage, built the way many English compounds are, by placing one noun before another to name something that is both.