Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
- an element having some of, but not all, the properties of metals, as arsenic or silicon
- like a metal in appearance
- of, or having the nature of, a metalloid
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A nonmetallic element, such as arsenic, that has some of the chemical properties of a metal.
- A nonmetallic element, such as carbon, that can form an alloy with metals.
- Relating to or having the properties of a metalloid.
- Having the appearance of a metal.
metalloid - Science Definition
The American Heritage® Science Dictionary
- An element that is not a metal but that has some properties of metals. Arsenic, for example, is a metalloid that has the visual appearance of a metal, but is a poor conductor of electricity; metalloids are generally semiconductors. The elements classified as metalloids are boron, silicon, germanium, arsenic, antimony, tellurium, and polonium. Metalloids can be viewed as a diagonal section on the Period Table, separating metals from nonmetals.
- A nonmetallic element, such as carbon, that can form alloys with metals.
Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.