sr

Sr

Symbol, Chemistry.
  1. strontium.

SR

  1. seaman recruit.

Sr.

1
  1. Ecclesiastical. Sister.

Origin of Sr.

1
From the Latin word Soror

Sr.

2

S.R.

  1. Sons of the Revolution.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sr

Historical Examples of sr


British Dictionary definitions for sr

sr

1
symbol for
  1. steradian

sr

2
the internet domain name for
  1. Suriname

Sr

abbreviation for
  1. (after a name) senior
  2. Señor
  3. Sir
  4. Sister (religious)
the chemical symbol for
  1. strontium
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

sr in Medicine

Sr

  1. The symbol for the elementstrontium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

sr in Science

Sr

  1. The symbol for strontium.

strontium

[strŏnchē-əm, -tē-əm]
Sr
  1. A soft, silvery metallic element of the alkaline-earth group that occurs naturally only as a sulfate or carbonate. One of its isotopes is used in the radiometric dating of rocks. Because strontium salts burn with a red flame, they are used to make fireworks and signal flares. Atomic number 38; atomic weight 87.62; melting point 777°C; boiling point 1,382°C; specific gravity 2.54; valence 2. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.