Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Arcus" Definition
noun
A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow.
Source: Wiktionary
A white band of cholesterol that forms at the edge of the cornea.
Source: Wiktionary
An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore.
Source: Wiktionary
An elastic band around the base of the arolium, a pad at the end of the leg of certain insects.
Source: Wiktionary