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soda

[soh-duh]
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noun
  1. sodium hydroxide.
  2. sodium monoxide.
  3. sodium carbonate(def 2).
  4. sodium, as in carbonate of soda.
  5. soda water.
  6. a drink made with soda water, flavoring, such as fruit or other syrups, and often ice cream, milk, etc.
  7. soda pop.
  8. (in faro) the card turned up in the dealing box before one begins to play.
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Origin of soda

1550–60; (< Italian) < Medieval Latin < Arabic suwwādah kind of plant; compare Middle French soulde, soude
Related formsso·da·less, adjective

Regional variation note

7. See soda pop.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for soda

soda

noun
  1. any of a number of simple inorganic compounds of sodium, such as sodium carbonate (washing soda), sodium bicarbonate (baking soda), and sodium hydroxide (caustic soda)
  2. See soda water
  3. US and Canadian a fizzy drink
  4. the top card of the pack in faro
  5. a soda Australian slang something easily done; a pushover
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Word Origin

C16: from Medieval Latin, from sodanum barilla, a plant that was burned to obtain a type of sodium carbonate, perhaps of Arabic origin
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 soda

n.

late 15c., "sodium carbonate," an alkaline substance extracted from certain ashes (now made artificially), from Italian sida (or Medieval Latin soda) "a kind of saltwort," from which soda was obtained, of uncertain origin. Perhaps it is from Arabic suwwad, the name of a variety of saltwort exported from North Africa to Sicily in the Middle Ages, related to sawad "black," the color of the plant. Another theory traces it to Medieval Latin sodanum "a headache remedy," ultimately from Arabic suda "splitting headache."

Soda is found naturally in alkaline lakes, in deposits where such lakes have dried, and from ash produced by burning various seaside plants. Since commercial manufacture of it began in France in late 18c., these other sources have been abandoned. Washing soda (sodium carbonate) is commonly distinguished from baking soda (sodium bicarbonate). A soda-cracker (1863) has baking soda as an ingredient.

The meaning "carbonated water" is first recorded 1834, a shortening of soda water (1802) "water into which carbonic acid has been forced under pressure." "It rarely contains soda in any form; but the name originally applied when sodium carbonate was contained in it has been retained" [Century Dictionary, 1902]. Since 19c. typically flavored and sweetened with syrups. First record of soda pop is from 1863, and the most frequent modern use of the word is as a shortening of this or other terms for "flavored, sweetened soda water." Cf. pop (n.1). Soda fountain is from 1824; soda jerk first attested 1922 (soda-jerker is from 1883). Colloquial pronunciation "sody" is represented in print from 1900 (U.S. Midwestern).

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Online Etymology Dictionary, © 2010 Douglas Harper

soda in Medicine

soda

(sōdə)
n.
  1. Any of various forms of sodium carbonate.
  2. Chemically combined sodium.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.