dusk

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dusk

[dəsk]
(astronomy)
That part of either morning or evening twilight between complete darkness and civil twilight.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Both feet were dark and cold, with duskiness of the skin of the distal one-third of both legs (Figure 1).
These lesions also persist for longer than 24-48 hours and often have a target appearance with central duskiness that sometimes can blister.
The extremity exam revealed 3+ pitting edema of his lower extremities, right 2nd/3rd/4th finger duskiness and necrosis (see Figures 2(a) and 2(b)), left 3rd finger duskiness and necrosis (see Figures 3(a) and 3(b)), and left 1st toe with duskiness and necrosis (see Figures 4(a) and 4(b)).
In one sense, this picture had almost faded into the canvas, and hidden itself behind the duskiness of age; in another, she could not but fancy that it had been growing more prominent, and strikingly expressive....
They involve the spatial extent and magnitude of duskiness of the outflow patch,19 RV fibrosis,21 impaired RV diastolic function22 and LV dysfunction.18
The works' chromatic complexity continuously increased as the duskiness slowly receded, and one felt this process could go on indefinitely.
This final duskiness gradually fades away, leaving the full Moon shining as bright and white as if nothing had happened.
SEATTLE Canon creates arty duskiness with their brandy old-fashioned, made with cognac infused with black truffle.
However, for those who have symptoms, the symptoms might include unilateral swelling of the lower extremity, duskiness, and a positive Homan's sign, which is elicited when the patient complains of pain with dorsiflexion of the foot.
The infant will likely benefit from a liter of blow-by oxygen administration until full recovery is observed (active infant without duskiness or circumoral cyanosis).