| double bubble sign |
the appearance on the radiograph of the abdomen of two foci of gas, one in the stomach and the other in the duodenum; a sign of duodenal obstruction. The same sign, in this case consisting of the stomach and duodenum distended by fluid, may be observed in the fetus by ultrasonography.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| double refraction |
Nearly synonymous with birefringence but may be applied in a restricted sense to transparent (at visible frequencies) media with sufficient birefringence that images seen through them are split. ...
출처: amsglossary.allenpress.com/glossary/browse
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| double helix |
The shape of DNA, much like a spiral staircase or twisted ladder. The stairway's railings are composed of sugars and phosphates. Its sides contain the patterned base pairs: A, T, C, and G. When a cell divides for reproduction, the helix unwinds and splits down the middle like a zipper in order to copy itself.
출처: https://www5.nationalgeographic.com/genographic/gl...
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| double helix |
The normal structural configuration of DNA consisting of two helices winding about the same axis. The structure of DNA first proposed by Watson and Crick with two interlocking helices joined by hydrogen bonds between paired bases.
출처: helios.bto.ed.ac.uk/bto/glossary/d.htm
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| double |
A play in which the batter makes it safely to second base without stopping.
출처: www.pbs.org/kenburns/baseball/beginners/glossary.h...
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