semi·​met·​al | \ˌse-mē-ˈme-tᵊl, ˌse-ˌmī-, -mi-\

Definition of semimetal 

: an element (such as arsenic) possessing metallic properties in an inferior degree and not malleable

Keep scrolling for more

Other Words from semimetal

semimetallic \ˌse-​mē-​mə-​ˈta-​lik, ˌse-​ˌmī-​, -​mi-​ \ adjective

Examples of semimetal in a Sentence

Recent Examples on the Web

Researchers have since made monolayers of metals, semimetals, insulators and more, but magnetism was the final holdout. Sylvia Morrow, Discover Magazine, "One Magnet to Bind Them All," 1 Feb. 2018 Now physicists may finally observed this phenomenon, mixed axial-gravitational anomaly, in a class of exotic materials known as Weyl semimetals. Kenneth Chang, New York Times, "An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries," 19 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'semimetal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of semimetal

1661, in the meaning defined above

Keep scrolling for more

Learn More about semimetal

Statistics for semimetal

Look-up Popularity

Time Traveler for semimetal

The first known use of semimetal was in 1661

See more words from the same year

More from Merriam-Webster on semimetal Encyclopedia article about semimetal

Comments on semimetal

What made you want to look up semimetal? Please tell us where you read or heard it (including the quote, if possible).


living or existing for a long time

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!