Words that rhyme with rosasco

n 1: a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia [syn: gold, Au, atomic number 79] 2: a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers) [syn: Astronomical Unit, AU]

n 1: an odorless very poisonous gas that is a product of incomplete combustion of carbon [syn: carbon monoxide, carbon monoxide gas, CO] 2: a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition [syn: cobalt, Co, atomic number 27] 3: one who refuses to serve in the armed forces on grounds of conscience [syn: conscientious objector, CO] 4: a state in west central United States in the Rocky Mountains [syn: Colorado, Centennial State, CO]