a dust storm.
noun an informal grouping of militant, mainly anarchist, protesters who act together during anti-capitalism, anti-war, etc, protests, often wearing black hoods and black clothing Contemporary Examples Egypt’s Child Abuse Scourge Alastair Beach February 21, 2013 Medea Benjamin and Code Pink Protest the RNC in Tampa Lynn Waddell August 27, 2012 The Monsters Who Screamed for […]
a sheet of smooth, hard material, especially dark slate, used in schools, lecture rooms, etc., for writing or drawing on with chalk. Contemporary Examples Meal Deal Sites and How to Use Them Wisely Maggie Nemser April 14, 2011 9 Most Annoying Celebrity Laughers Jaimie Etkin October 27, 2011 Worst Sex Writing of the Year Olivia […]
a school or school system characterized by lack of discipline and by juvenile delinquency.
a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface. blackbody (blāk’bŏd’ē) A theoretically perfect absorber and emitter of every frequency of electromagnetic radiation. The radiation emitted by a blackbody is a function only of its temperature.