sem

S1E1M3
/sɛm/

A form of scanning electron microscope — An electron microscope whose image is made up of a matrix of points from scanning the surface of a sample.

CommonScrabble 5
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Meanings

sem1

nounsem (plural sems)

plural sems

  1. abbreviationclippingClipping of seminary.
  2. abbreviationclippingClipping of semester.
  3. abbreviationclippingClipping of semicolon

Sem2

adjective
  1. abbreviationAbbreviation of Semitic.

SEM3

nounSEM (countable and uncountable, plural SEMs)

plural SEMs

  1. abbreviationcountableinitialismuncountableInitialism of scanning electron microscope.
  2. abbreviationcountableinitialismuncountableInitialism of scanning electron microscopy.
  3. abbreviationcountableinitialismuncountableInitialism of secondary electron multiplier.
  4. abbreviationcountableinitialismuncountableInitialism of search engine marketing.
  5. abbreviationcountableinitialismuncountablemathematicsInitialism of standard error of the mean.
  6. abbreviationcountableinitialismuncountablecomputer securityInitialism of security event management.
  7. abbreviationcountableinitialismuncountablecomputer securityInitialism of security event manager.

Synonyms & antonyms

Also see
search engine optimization

Rhymes & wordplay

Rhymes with sem

themmemstemmemchemBDSMdemgemremhemcondemncemrequiempremahemwemphlegmcremleamyemcontemndestemhyem
All rhymes →

Anagrams

ems
Cite this entry
APA

sem. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sem

MLA

“sem.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sem. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “sem,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sem.

Source: sem on Wiktionary, CC BY-SA 4.0.