ganzfeld (iou) and shield(1) (iou)

ganzfeld (iou)

ganzfeld noun. M20.
[German, lit. 'entire field'.]
Psychology. An empty field of vision; spec. in parapsychology, an experimental technique in which subjects are exposed to neutral visual and aural stimuli in order to improve results in tests of telepathy and Other Paranormal phenomena.

shield(1) (iou)

shield noun1.

I.
A piece of metal, wooden, hard plastic, etc., armour having a circular, oblong, or (esp.) characteristic flat-topped heart shape and strapped on the arm or held in the hand as a protection from blows and missiles. OE.
W. Morris Every man had ready to his hand Sharp spear, and painted shield. Sunday Mirror Half-bricks pound against shaking Perspex shields.
Heraldry. A stylized representation of a shield on which a coat of arms is depicted; a representation of this, a coat of arms. ME.
C. Boutell The well-known Shield of Piers de Gaveston..vert, six eaglets or.
b. A shield-shaped trophy offered as a prize in a sporting etc. competition; such a competition. M19.
M. Spark Every house must go all out for the Shield.
c. A police officer's shield-shaped badge of office. US. E20.
[translating Old French escu.] = eCU. rare. LME-L16.
a. Horticulture. A shield-shaped piece of bark bearing a bud, for grafting between the wood and bark of a stock. L16.
b. Botany. The apothecium of a lichen. Now rare. L18.
A shield-shaped ornamental or functional plate or surface. M17.
J. Ruskin The shield of stone which..occupied the head of early windows.
b. A (breed of) fancy pigeon having shield-shaped wing markings. M19.
(Usu. Shield.) The constellation Scutum. Earliest in SOBIESKI's shield. L18.
Physical Geography.
a. A large seismically stable mass of Archaean basement rock having the form of a flat or gently convex peneplained platform and usu. forming the nucleus of a continent. Freq. with cap. initial in proper names, as Baltic Shield, Canadian Shield. Cf. CRATON, KRATOGEN. E20.
b. The dome of a shield volcano. M20.
II. A thing serving as a protection or shelter.
gen. A thing or person serving as a protection against attack, danger, exposure, etc. ME.
R. W. Emerson No dignity or wealth is a shield from its assault. D. Cecil She hid her true self behind the shield of an aloof formality. Daily Telegraph His..hill-tribe force form the..only credible shield against the North Vietnamese.
The thick tough skin on the sides and flanks of a boar. Also (in full shield of brawn), an article of Food consisting of chopped boar's meat moulded inside a piece of this tough skin and cooked. Cf. BRAWN noun 2. Now rare. ME.
A protective screen or cover; spec. (a) one used to guard machinery or machine operators; (b) a machine or structure used in tunnelling, orig. to protect digging workers from roof falls or leaks and now also to bore through soft ground; (c) = dress-shield s.v. DRESS noun; (d) Physics an electrically conducting cover of a device or apparatus intended to protect it from external electric or magnetic fields, or to reduce or eliminate interference radiated by the device or apparatus itself; (e) Physics a mass of material, usu. lead or concrete, intended to absorb neutrons and Other ionizing radiation emitted by a reactor or accelerator; (f) Zoology a protective plate on an animal, e.g. the carapace of a turtle or crustacean, the pronotum of an insect; a large scale or scute, esp. on the head of a snake or the carapace of a turtle. E18.
Phrases: gum-shield: see GUM noun1. heat shield: see HEAT noun. Laurentian Shield: see LAURENTIAN adjective1. the Other side of the shield = the reverse of the shield s.v. REVERSE noun. the reverse of the shield: see REVERSE noun. two sides of a shield two ways of looking at something, two sides to a question.
Comb.: shield arm the left arm; shield-back adjective (of a chair) having a shield-shaped back; shield-bearer Hist. an attendant who carried a warrior's shield; shield-board (obsolete exc. dial.) = mould-board s.v. MOULD noun1; shield-bud = sense 4a above; shield-budding Botany the operation of grafting a shield; shieldbug Entomology any of various broad flat hemipteran bugs, esp. pentatomids, with a shield-shaped pronotum and scutellum; also called stink-bug; shield cartilage (a) Anatomy = THYROID noun 1; (b) Zoology any of several protective cartilages in the cranium of a cyclostome; shield fern any of various ferns constituting the genus Polystichum, esp. P. aculeatum and P. setiferum, with shield-shaped indusia and sharp pinnules; shield-maid, shield-maiden, shieldmay arch. a female warrior, an Amazon; a Valkyrie; shield-money = SCUTAGE; shield-nose snake, shield snake a venomous southern African elapid snake, Aspidelaps scutatus, with a large shieldlike scute on the snout; shieldtail = shield-tailed snake below; shield-tailed snake any of various blind burrowing snakes of the family Uropeltidae, found in southern India and Sri Lanka, with a flat disc of enlarged scutes on the upper surface of the tail; shield volcano a volcano having the form of a very broad dome with gently sloping sides, characteristic of the eruption of basic lavas of low viscosity.
shieldless adjective LME.
shieldlike adjective resembling a shield in shape M16.

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