Dictionary.com
definitions
  • synonyms

Sem

[sem]
noun Douay Bible.
  1. Shem.
Show More

SEM

  1. Optics. scanning electron microscope.
  2. search-engine marketing: a type of online marketing in which a company, organization, or website owner drives traffic to a website by optimizing its ranking or by paying for the website to appear in search-engine results pages.See also SEO.
Show More

sem.

  1. semicolon.
Show More

Sem.

or Sem.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sem

Contemporary Examples

Historical Examples


sem in Medicine

SEM

abbr.
  1. scanning electron microscope
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.