• None
  • One of a series of ridges, with corresponding depressions, rising in wave-like succession above the general level of the snow when this has been blown across by a long-continued wind.
  • Any of a series of long, wavelike <xref>ridges</xref> or <xref>grooves</xref> formed on a <xref>snow</xref> surface by the <xref>wind</xref>, especially in <xref>polar</xref> <xref>plains</xref>.
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