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SD1

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  1. the intelligence and counterespionage service of the Nazi SS.
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Origin of SD1

From the German word Sicherheitsdienst

SD2

  1. sea-damaged.
  2. South Dakota (approved especially for use with zip code).
  3. Statistics. standard deviation.
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L.S.D.

or £.s.d., l.s.d.

  1. pounds, shillings, and pence.
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Origin of L.S.D.

From the Latin word librae, solidī, dēnāriī

sd.

  1. sound.
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s.d.

  1. sine die.
  2. Statistics. standard deviation.
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S.D.1

  1. doctor of science.
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Origin of S.D.1

From the Latin word Scientiae Doctor

S.D.2

  1. sea-damaged.
  2. senior deacon.
  3. South Dakota.
  4. special delivery.
  5. Statistics. standard deviation.
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S/D

  1. school district.
  2. sight draft.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sd

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British Dictionary definitions for sd

sd1

abbreviation for
  1. sine die
  2. sound
  3. philosophy sense datum
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sd2

the internet domain name for
  1. Sudan
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SD

abbreviation for
  1. South Dakota
  2. Also: sd statistics standard deviation
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abbreviation for
  1. Swaziland (international car registration)
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L.S.D.

.s.d. or l.s.d.

abbreviation for (in Britain, esp formerly)
  1. librae, solidi, denarii
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Word Origin

Latin: pounds, shillings, pence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sd

l.s.d.

abbreviation of British currency units, from Latin librae, soldi, denarii, Roman equivalent of "pounds, shillings, pence."

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Online Etymology Dictionary, © 2010 Douglas Harper

sd in Medicine

SD

abbr.
  1. streptodornase
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.