What does zastrugi mean?
Zastrugi are elongated, wind-eroded ridges and grooves in snow, especially on open, exposed surfaces. They form when blowing snow abrades the surface, leaving hard, sharp-edged crests and troughs aligned with the prevailing wind. The word is specialized in meteorology, geography, mountaineering, skiing, and travel writing, but it is useful to anyone reading about polar, alpine, or snowy landscapes because it names a distinctive feature that “drift” or “snow ridge” does not quite capture. Zastrugi are usually discussed in the plural: modern English dictionaries commonly treat the word as a plural noun and may give “zastruga” as the rare singular. The term comes through Russian from a Norwegian word, preserving northern vocabulary for the sculpted patterns created by persistent wind. The result is a visually vivid word that conveys both the beauty and the navigational difficulty of wind-shaped snow.
noun (plural)Irregular ridges and grooves carved into snow by wind, often forming sharp crests aligned with the prevailing wind.
- Elongated, wind-eroded ridges, grooves, or furrows in snow, especially on exposed polar or alpine surfaces.
"By late morning, the wind had sculpted long, sharp-crested zastrugi across the open snowfield."
"By late morning, the wind had sculpted long, sharp-crested zastrugi across the open snowfield."
"The report noted that fresh zastrugi made the route over the plateau more difficult to follow."
The word is normally an invariant plural in English and does not change in the plural; the rare singular “zastruga” is also recorded in some dictionaries.
"The report described extensive fields of zastrugi between the camp and the ridge."
Zastrugi are snow's fingerprints: each sharp ridge records the direction and force of the wind that carved it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of zastrugi
The English word was borrowed in the 19th century from Russian zastrugi, the plural of zastruga. Russian in turn borrowed the term from Norwegian zastroga, which derives from obsolete Swedish astraka, a noun associated with scraping. The word preserves northern European terminology for the distinctive patterns sculpted by wind in snow.
Related word forms
How zastrugi is actually used
This is a specialist term used in meteorology, physical geography, mountaineering, skiing, and travel writing. It is more precise than the general phrase “snow ridge” but is rarely needed in casual descriptions.
Easily confused with zastrugi
Sastrugi is an alternative spelling of zastrugi, and the two forms refer to the same wind-carved snow formations.