submerged arc welding
a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
What’s Between Your Eyebrows?Read more in this article about some frequently asked questions and fun facts related to our definitions.
A Word Problem in Tonight’s Meteor ShowerTonight’s meteor shower has an anachronistic name. It was originally named after the constellation Quadrans Muralis, discovered by Jerome Lalande in 1795. Well, “discover” may be the wrong word. Today, the International Astronomical Union no longer recognizes this constellation, rather the stars that were a part of it are now considered to be parts of other, more widely recognized constellations. Lalande named the constellation “Quadrans Muralis” after …
- submental artery,
- submental vein,
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012