a Eurasian plant, Medicago lupulina, of the pea family, having black pods, cultivated for forage.
a small European leguminous plant, Medicago lupulina, with trifoliate leaves, small yellow flowers, and black pods Also called nonesuch
See under mercuric sulfide. a crystalline, water-insoluble, poisonous compound, HgS, occurring as a coarse, black powder (black mercuric sulfide) or as a fine, bright-scarlet powder (red mercuric sulfide) used chiefly as a pigment and as a source of the free metal.
noun Usage Note Contemporary Examples My $295 Skype Exorcism Scott Bixby February 5, 2014 Historical Examples Astounding Stories of Super-Science, August 1930 Various The Man Who Saw the Future Edmond Hamilton Wandl the Invader Raymond King Cummings Islands of Space John W Campbell Two Thousand Miles Below Charles Willard Diffin The Ethical Engineer Henry Maxwell […]
bread mold. any fungus of the family Mucoraceae, especially Rhizopus nigricans, that forms a black, furry coating on foodstuffs.
a jet-black molly, a color form especially of Poecilia latipinna or P. sphenops, popular as an aquarium fish.