单词 | peripheral |
释义 | peripheral (once / 5467 pages) 1adj 2n Scanners, printers, and speakers are peripheral devices for a computer because they aren't central to the working of the computer itself. Anything peripheral is on the margin, or outside, while main things, like a computer's processor, are not peripheral. Outside of computer jargon, peripheral is a common term in eye exams, which measure peripheral vision to see how far toward the outer right and left edges you can see. Peripheral also describes nerves from the body's peripheral system, which are secondary to the main system but branch off of it — like the wires between peripheral devices and a computer. WORD FAMILYperipheral: peripherally, peripherals+/periphery: peripheral, peripheries USAGE EXAMPLESIt’s a Wonderful Life deserves a kind of peripheral inclusion here, for being where inspirational triangulates with the weepie and the Christmas film. The Guardian(Jan 01, 2017) The fall was caused by a peripheral nerve sheath tumor and led to several weeks in the hospital. Washington Times(Dec 31, 2016) He is talking about Guillain-Barré syndrome, a condition which occurs when the immune system attacks the peripheral nervous system – causing severe muscle weakness and paralysis. The Guardian(Dec 29, 2016) 1 1adj on or near an edge or constituting an outer boundary; the outer area Russia's peripheral provinces peripheral suburbs Syn|Ant circumferential lying around or just outside the edges or outskirts fringy, marginalat or constituting a border or edge encircling, skirtingbeing all around the edges; enclosing off-baselocated outside a military base central in or near a center or constituting a center; the inner area amidshiplocated in the middle part of a ship or aircraft bicentrichaving two centers bifocalhaving two foci center, halfway, middle, midwayequally distant from the extremes centeredbeing or placed in the center centric, centricalhaving or situated at or near a center focalhaving or localized centrally at a focus medial, medianrelating to or situated in or extending toward the middle middlemost, midmostbeing in the exact middle nuclearconstituting or like a nucleus 2adj related to the key issue but not of central importance 2a peripheral interest energy is far from a peripheral issue in the economy peripheral issues Syn incident, incidental (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence n (computer science) electronic equipment connected by cable to the CPU of a computer disk drives and printers are important peripherals Syn|Hypo|Hyper computer peripheral, peripheral device data input device, input device a device that can be used to insert data into a computer or other computational device output deviceelectronic or electromechanical equipment connected to a computer and used to transfer data out of the computer in the form of text, images, sounds, or other media printer(computer science) an output device that prints the results of data processing computer keyboard, keypada keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard dot matrix printer, dot printer, matrix printera printer that represents each character as a pattern of dots from a dot matrix joysticka manual control consisting of a vertical handle that can move freely in two directions; used as an input device to computers or to devices controlled by computers digital scanner, image scanner, scanneran electronic device that generates a digital representation of an image for data input to a computer electronic equipment equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor) |
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