eyewash

[ahy-wosh, ahy-wawsh]
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noun
  1. Also called collyrium. Pharmacology. a solution applied locally to the eye for irrigation or administering medication.
  2. Informal. nonsense; bunk.

Origin of eyewash

First recorded in 1865–70; eye + wash
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for eyewash

eyewash

noun
  1. a mild solution for applying to the eyes for relief of irritation, etc
  2. informal nonsense; rubbish
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 eyewash
n.

"a wash or lotion for the eyes," 1866, from eye (n.) + wash (n.). Colloquial use for "blarney, humbug" (1884), chiefly British, is perhaps from the notion of "something intended to obscure or conceal facts or true motives." But this, and expression my eye also may be the verbal equivalent of the wink that indicates one doesn't believe what has been said (cf. French mon oeil in same sense, accompanied by a knowing pointing of a finger to the eye).

Online Etymology Dictionary, © 2010 Douglas Harper

eyewash in Medicine

eyewash

wŏsh′]
n.
  1. A soothing solution for bathing or medicating the eye.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.