SM
Noun

SM (plural SMs)

  1. (US, space science) Initialism of w:service module
  2. (music) Initialism of short meter
  3. (science fiction) Initialism of space marine
  4. Abbreviation of sexual minority#English|sexual minority (“non-heterosexual”). (Also used attributively.)
    • 2016, Kristen Eckstrand, Jesse M. Ehrenfeld, Lesbian, Gay, Bisexual, and Transgender Healthcare: A Clinical Guide to Preventive, Primary, and Specialist Care, Springer (ISBN 9783319197524), page 99:
      Transmission of HPV between female partners is possible and has been documented. There exists a higher proportion of current or former smokers among sexual minority (SM) women, a known risk factor for cervical cancer.

Sm
Adjective
  1. Abbreviation of small#English|small.
Noun
  1. (galaxy) irregular galaxy with spiral characteristics



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