| 单词 | helix |
| 释义 | helix (once / 21807 pages) n A helix is a twisted, spiral shape, like a corkscrew. In math, a helix is defined as "a curve in three-dimensional space." If you have ever seen a spiral staircase, you can envision the shape of a helix. To picture the shape of a helix, imagine the coil of a spring inside a sofa, or the shape the threads of a screw make, curling in a spiral. When you hear the word helix, you may think of a double helix, which resembles two interconnected spirals and describes the shape of human DNA. In both Latin and Greek, helix means "spiral" or "spiral-shaped thing." WORD FAMILYhelix: helical, helices, helixes+/helical: helically USAGE EXAMPLESTwo vexing issues screw through the novel like a double helix. Washington Post(Nov 28, 2016) A large statue of a bulldog with a double helix painted across its torso glowers in front of the Biotest Plasma Center. Washington Post(Nov 22, 2016) One participant in the Public Genome Project was James Watson, co-discoverer of the double helix structure of DNA. Nature(Sep 06, 2016) 1n a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle Syn|Hypo|Hyper spiral double helix a pair of parallel helices intertwined about a common axis curve, curved shape the trace of a point whose direction of motion changes 2n a structure consisting of something wound in a continuous series of loops Syn|Hypo|Hyper coil, spiral, volute, whorl hank a coil of rope or wool or yarn skeincoils of worsted yarn construction, structure a thing constructed; a complex entity constructed of many parts Helix (once / 38880 pages) n WORD FAMILY Helix: Helices USAGE EXAMPLESThe Hotel Helix renovation brought two new drinking options to Logan Circle. Washington Post(Dec 28, 2016) The fifth style, Nike Helix Elite, features Zeiss Optics and is a one-piece lens incorporating rubber channels and ventilated temple arms for fog prevention. Los Angeles Times(Nov 10, 2016) A man who answered the phone at the Helix companies' address, but wouldn't give his name, said the companies are two separate entities. US News(Oct 14, 2016) n type genus of the family Helicidae Syn|Hyper genus Helix mollusk genus a genus of mollusks |
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