A tiny ice particle, about 10-20 microns in diameter, formed by direct freezing of supercooled water droplets with little growth directly from the vapor. The term combines the words drop and crystal.
Droxtals cause most of the visibility reduction in ice fog.
Remnant elongated hills formed by historical glacial action; it is not clear exactly how they are formed and why they form only in some glaciated regions.
A streamlined hillock, commonly elongated parallel to the former ice flow direction, composed of glacial debris, and sometimes having a bedrock core; formed beneath an actively flowing glacier. (from
the Gaelic)