ground

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ground

 [grownd]
1. a path of conduction from an electrical circuit to the earth.
2. to connect an electrical circuit or electrical equipment to the earth.
3. zero electrical potential.

ground

1. Basic substance or foundation.
2. Reduced to a powder; pulverized.
3. In electronics, the negative or earth pole that has zero electrical potential.

figure

A part or pattern in the visual field which has the perceptual attribute of completeness and is perceived as distinct from the rest of the field which forms the ground. Example: a printed word against a background page.
ambiguous figure An image or drawing arranged in such a way that its perception oscillates or flips involuntarily between, usually, two interpretations even though the retinal image remains constant, thus indicating that higher cortical processing are involved. Syn. reversible figure. See Blivet figure; Kanizsa figure; illusion; Necker cube; Rubin's vase; Schroeder's staircase.
Blivet figure An 'impossible' figure in which three apparently solid tubes are attached at one end of a rectangular base which projects only two bars (Fig. F4). See Necker cube; Schroeder's staircase; Rubin's vase.
fortification figure See scintillating scotoma.
Kanizsa figure An ambiguous figure in which the illusory contour of a square (or triangle) appears in the middle of four (or three) truncated solid squares (or circles). It is an illustration of the perceptual ability to make sense of an incomplete figure by creating a 'whole' image from the separate elements (Gestalt organization). Some people cannot perceive the contour. Syn. Kanizsa square (Fig. F5).reversible f. See ambiguous figure.
Fig. F4 Blivet figureenlarge picture
Fig. F4 Blivet figure
Fig. F5 Kanisza figureenlarge picture
Fig. F5 Kanisza figure
References in periodicals archive ?
"There is no record that the government de-gazetted the land as the holding ground," Swazuri said.
Marcus Hosgood, racing secretary to Dunlop, said: "He was withdrawn from the Curragh Cup due to holding ground and we hope the going at Longchamp is no easier than good to soft."
The only thing is he doesn't like holding ground; hopefully it won't be."
McNamara took theSback Rock Noir and Alexis Acker in holding ground over the final 50 yards.
Dettori appeared full of enthusiasm for Cutlass Bay, who got home by half a length in the holding ground, with Allybar running on to take third in front of the well-backed Topclas.
Clerk of the course David Williams said after racing yesterday: "It's been sticky, holding ground - typical drying ground after a lot of rainfall.
He handled testing ground well that day, but if we have very holding ground this time it will be an unknown.
'It has come to our attention that the grounds are being used as a garage, parking yard, car wash and holding grounds for unlicensed vehicles,' reads the notice .
A herder was last week shot dead by suspected bandits at Biliqo field in Garbatulla Sub-County while another was seriously injured when a group of attackers opened fire on him at Kambi Samaki as he grazed his camels.HOLDING GROUNDSPlans by the Isiolo County government to establish feedlots in strategic holding grounds to save thousands of animals that die during drought are underway, Governor Mohamed Kuti recently said.