• WordNet 3.6
    • n dross worthless or dangerous material that should be removed "there were impurities in the water"
    • n dross the scum formed by oxidation at the surface of molten metals
    • ***
Webster's Revised Unabridged Dictionary
    • Dross Rust of metals.
    • Dross The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.
    • Dross Waste matter; any worthless matter separated from the better part; leavings; dregs; refuse. "All world's glory is but dross unclean.""At the devil's booth are all things sold,
      Each ounce of dross coats its ounce of gold."
    • ***
Century Dictionary and Cyclopedia
    • n dross Refuse or impure or foreign matter which separates from a liquid and falls to the bottom or rises to the top, as in wine or oil or in molten metal; sediment; lees; dregs; scum; any refuse or waste matter, as chaff; especially, and now chiefly, the slag, scales, or cinders thrown off from molten metal.
    • n dross In galvano-elect., an alloy of zinc and iron formed in the zinc-bath, partly by the solvent action of the zinc on the iron of the pot, but chiefly from the iron articles dipped, and from the dripping off of the superfluous amalgam as they come from the bath.
    • n dross Figuratively, a worthless thing; the valueless remainder of a once valued thing.
    • dross To remove dross from.
    • dross To convert (lead) into dross or protoxid by melting in an oxidizing atmosphere. The operation is usually accomplished in a reverberatory furnace.
    • ***
Chambers's Twentieth Century Dictionary
    • n Dross dros the scum which metals throw off when melting: waste matter: refuse: rust
    • ***


Webster's Revised Unabridged Dictionary
AS. dros, fr. dreósan, to fall. See Dreary
Chambers's Twentieth Century Dictionary
A.S. drós, from dreósan, to fall; cf. Dut. droesem; Ger. druse.


In literature:

When the metal has become soft enough to stir with a clean pine stick skim off the dross.
"The Automobile Storage Battery" by O. A. Witte
Must suffering consume our earthly dross?
"The Continental Monthly, Vol. 4, No. 2, August, 1863" by Various
He's got both eyes fixed on de glitterin' dross.
"A Noble Woman" by Ann S. Stephens
Lord of these things, he wanted one thing more, Not having which, all else to him was dross.
"The Atlantic Monthly, Volume 15, No. 88, February, 1865" by Various
Money, as Charles Lamb, a great despiser of cant, observed, is not dross, but books, pictures, wines, and many pleasant things.
"The Claims of Labour an essay on the duties of the employers to the employed" by Arthur Helps
His gold shall turn to dross, his pleasure to Dead Sea fruit.
"The Heart of the New Thought" by Ella Wheeler Wilcox
Each in its kind was alloy, dross, and for each the metal had to pass through the fires and, purified, come forth.
"The Preacher of Cedar Mountain" by Ernest Thompson Seton
Countries such as this are not suited to the dross of humanity.
"The Peace of Roaring River" by George van Schaick
Caroline, she found, felt the value of the true ore, and knew the deception of the flashy dross.
"Shirley" by Charlotte Brontë
Take this dross from your poor friend who loves you!
"The Works of Robert Louis Stevenson - Swanston Edition Vol. 7 (of 25)" by Robert Louis Stevenson

In poetry:

I ask not how remote the day
Nor what the sinner's woe
Before their dross is purged away,
Enough for me to know
"A Word To The Calvinists" by Anne Bronte
Vile as the dross the wicked are;
And those that leave thy ways
Shall see salvation from afar,
But never taste thy grace.
"Psalm 119 part 1" by Isaac Watts
“’The gathered gold is turned to dross,
The wife hath faded into air,
My heart is thrown away, my loss
I cannot spare.
"The Letter L" by Jean Ingelow
If dim the gold of life has grown,
I will not count it dross,
Nor turn from treasures still my own
To sigh for lack and loss.
"My Birthday" by John Greenleaf Whittier
Do pardons sweetly melt thy heart,
And most imbitter sin?
And make thee long with dross to part,
Thy Husband's throne to win?
"The Believer's Jointure : Chapter II." by Ralph Erskine
What is Truth? the miser says,
While counting o'er his ill-got gain:
What care I for her good ways,
So I the "yellow dross" obtain.
"What Is Truth?" by Benjamin Cutler Clark

In news:

Courtesy of Richard Drosse Peter Bock with a collection of water chestnuts pulled from the Oswego River July 7 near Battle Island State Park.
Kichler's Jeffrey Dross promoted to corporate director of education and industry trends.
CLEVELAND — Kichler Lighting has announced that Jeffrey Dross has been promoted to corporate director of education and industry trends.
Kichler's Dross Promoted to Corporate Director, Education and Industry Trends.
CLEVELAND–With 36 years of lighting experience at Kichler, Jeffrey Dross has been named to the post of corporate director of education and industry trends.
The reduction of aluminum oxide, or dross losses, represents a significant material and cost-savings opportunity to the secondary aluminum-melting industry.
Diamonds Amid the Dross .
Quintas and Quintas, a Portuguese cable producer, has purchased a model 150S dross press from ALTEK International, Exton, PA.
Judy Dross, left, and Gloria Bambrick count and stack components of T-shirts at FesslerUSA apparel manufacture in Orwigsburg, Pa.
In this Monday, Oct 15, 2012 file photo, Judy Dross, left, and Gloria Bambrick count and stack components of T-shirts at FesslerUSA apparel manufacture in Orwigsburg, Pa.