flicker

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woodpecker

woodpecker, common name for members of the Picidae, a large family of climbing birds found in most parts of the world. Woodpeckers typically have sharp, chisellike bills for pecking holes in tree trunks, and long, barbed, extensible tongues with which they impale their insect prey. Their spiny tail feathers act as a prop in climbing, resting, and drilling. Usually the male has a red or orange patch on its head and barred and spotted black or brown plumage with light underparts. Among the North American woodpeckers are the sociable downy woodpecker, Picus pubescens (about 61-2 in./17 cm long); the similar but larger hairy woodpecker, P. villosus, the red-crested pileated woodpecker, or logcock, Hylotomus pileatus (about 17 in./44.3 cm long), which is similar to the possibly extinct ivory-billed woodpecker; the redheaded and three-toed woodpeckers, genus Picoides; and the California woodpecker, genus Colaptes, which makes small holes in trees for storing acorns. The flickers, genus Melanerpes, the only brown-backed woodpeckers, sometimes capture insects on the ground. The yellow-shafted flicker is known by many local names (e.g., high hole and yellowhammer) and interbreeds with the red-shafted flicker. The sapsuckers (e.g., the red-breasted and yellow-bellied sapsuckers) may damage or kill trees by girdling them with small holes through which they eat some of the cambium and drink sap; they also feed on ants and wild fruit. The piculets are tiny (3–5 in./7.6–12.7 cm long) Old and New World woodpeckers. The woodpecker family also includes the Old World wryneck, which does not peck wood. Woodpeckers are classified in the phylum Chordata, subphylum Vertebrata, class Aves, order Piciformes, family Picidae.
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Flicker

Momentary loss of light due to the fluctuation or loss of AC power.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

flicker

[′flik·ər]
(optics)
A visual sensation produced by periodic fluctuations in light at rates ranging from a few cycles per second to a few tens of cycles per second.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

flicker

1
Television a visual sensation, often seen in a television image, produced by periodic fluctuations in the brightness of light at a frequency below that covered by the persistence of vision

flicker

2
any North American woodpecker of the genus Colaptes, esp C. auratus (yellow-shafted flicker), which has a yellow undersurface to the wings and tail
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

flicker

An irregular sequence of frames in a movie or video image. The first flicker effect came from movie projectors that were out of synchronization with the film frames. See judder, interlace and flicker fusion rate.
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References in periodicals archive ?
There is much here that is concrete, earthy, sensual, yet the book seeks to push open those doors within us and without that allow our gaze to settle, albeit briefly and puzzledly, because flickeringly, upon the metaphysical mysteries that hang spectrally yet really about us, forces intuitable and at times plainly visible leaping merrily beyond our daily rationalizations.
John of the Cross and, flickeringly, I wished I were a Catholic so I'd be eligible for certain extreme emotions.
That passage nicely illustrates the fundamental magic trick of the four Rabbit books, the mix of high diction and demotic speech that conveys Rabbit's most fleeting perceptions in speech that flickeringly is and is not his.