Science / Chemistry / Cathode Ray: A negatively charged beam that emanates from the cathode of a discharge tube. Cathode rays are streams of electrons.
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Ray Adjective Synonyms: beam, shaft, bar, streak, pencil, gleam, flash
Ray Noun Synonyms: glimmer, trace, spark, scintilla, flicker
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Science / Chemistry / X-Ray Tube: A cathode ray tube that focuses energetic streams of electrons on a metal target, causing the metal to emit x-rays. MORE
Technology / Computers / Cathode Ray Tube (CRT): Among the first computer monitors, still occasionally found today. Works by creating a beam of electrons that strike the phosphor coating inside the display. MORE
Science / Weather / Sea Spray: Sometimes called salt spray, it is the drops of sea water (salt water) blown from the top of a wave. MORE
Health / Disease / Residual Spraying: The application of small amounts of insecticide to the interior walls of houses to kill and repel malaria-transmitting mosquitoes. DDT is the most common chemical used because it remains toxic to mosq MORE