from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A high-melting, lightweight, corrosion-resistant, rigid, steel-gray metallic element used as an aerospace structural material, as a moderator and reflector in nuclear reactors, and in a copper alloy used for springs, electrical contacts, and nonsparking tools. Atomic number 4; atomic weight 9.0122; melting point 1,278°C; boiling point 2,970°C; specific gravity 1.848; valence 2. See Table at element.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The chemical element with an atomic number of 4; a light metal with specialist industrial applications.

from the GNU version of the Collaborative International Dictionary of English

  • n. A metallic element found in the beryl. See glucinum.

from The Century Dictionary and Cyclopedia

  • n. Same as glucinum.
  • n. Some evidence has lately been brought forward which indicates that another element may perhaps be present in beryllium, which has heretofore been supposed to be simple.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a light strong brittle grey toxic bivalent metallic element


from The American Heritage® Dictionary of the English Language, 4th Edition

From beryl.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From New Latin beryllium, from beryllus, from Ancient Greek βήρυλλος (berullos, "beryl"), + -ium.


  • Long-term beryllium exposure can increase the risk of developing lung cancer.

    CR4 - Recent Forum Threads and Blog Entries

  • Around the plutomum is a cylinder of beryllium, which is a godsend for our purposes.

    The Sum of all Fears

  • 'Now, around the beryllium is a cylinder of tungsten-rhenium, which we need for its density We will purchase twelve kilograms in powder form, which we will sinter into cylindrical segments.

    The Sum of all Fears

  • A potentially toxic chemical called beryllium was found in the soil and has to be removed.


  • While DeconGel® is gaining in use within the Department of Energy sites for remediation of radiological, nuclear, and hazardous chemical substances such as beryllium, it's also an essential product to keep on hand for hazardous materials (HAZMAT) or Chemical, Biological, Radiological and Nuclear (CBRN) first responder units concerned about immediate clean up after a major incident from accidents or acts of terrorism such as a dirty bomb.

    The Earth Times Online Newspaper

  • Not surprisingly, this kind of beryllium-10 can be studied only in places with plenty of quartz, evenly distributed across the landscape. - latest science and technology news stories

  • The Blue Earth is free from harmful substances such as beryllium and phthalates, and is made out of recycled water bottles.


  • To find out, a team led by Jose Abreu of the Swiss Federal Institute of Aquatic Science and Technology in Duebendorf analysed 66 long-term highs from the past 10,000 years, as recorded in fluctuating levels of rare isotopes such as beryllium-10 in ice cores from Greenland.

    New Scientist - Space

  • The company's connectors are produced using materials that meet high test standards and are constructed using military-grade materials (MIL-DTL-83513 microminiature connectors and MIL-DTL-55302F connectors, including plugs and receptacles, for printed circuit subassembly), such as beryllium copper and special PPS polyphenylene sulphide fibreglass-filled thermoplastic.

    Electronicstalk - electronics industry news

  • Only few metals can surpass it like beryllium which is very expensive and toxic.

    Original Signal - Transmitting Buzz


Log in or sign up to get involved in the conversation. It's quick and easy.

  • Be.

    December 16, 2007

  • best in spherical form.

    December 29, 2006