dark-field

[ dahrk-feeld ]

/ ˈdɑrkˌfild /

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adjective Optics.

of or relating to the illumination of an object by which it is seen, through a microscope, as bright against a dark background.

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Origin of dark-field

First recorded in 1860–65

The eating disorder field remains divided over the potential efficacy of such measures.
How Skinny Is Too Skinny? Israel Bans ‘Underweight’ Models|Carrie Arnold|January 8, 2015|DAILY BEAST
He wore white gloves, a dignified long black coat, and matching pants and vest, and he carried a dark walking stick.
The Black Man Who Replaced Jefferson Davis in the Senate|Philip Dray|January 7, 2015|DAILY BEAST
I thought about the mother, her fear of the dark, of the harm she feared might come to her daughters.
I Tried to Warn You About Sleazy Billionaire Jeffrey Epstein in 2003|Vicky Ward|January 7, 2015|DAILY BEAST
Then she managed to struggle a mile through dark, rainy woods.
The 7-Year-Old Plane Crash Survivor’s Brutal Journey Through the Woods|James Higdon|January 7, 2015|DAILY BEAST

“He was a brave field commander and an expert in intelligence, and in organizing popular and tribal forces,” said the eulogist.
What an Iranian Funeral Tells Us About the Wars in Iraq|IranWire|January 6, 2015|DAILY BEAST
He distinguished himself in several campaigns, especially in the Peninsular war, and was raised to the rank of field marshal.
The Every Day Book of History and Chronology|Joel Munsell
We had six field-pieces, but we only took four, harnessed wit twice the usual number of horses.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
Ripperda's eye fell upon the mantle,—it was discoloured a dark red in many places, he nodded his head, and the man withdrew.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
There were two battalions, together about a thousand men; and they brought a field-piece with them.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
He glanced aside, and saw an exceedingly pretty, dark face, which looked vaguely familiar.
Rosemary in Search of a Father|C. N. Williamson