| birefringence |
In CDs and other optical discs, it means double refractive ability. It is caused mainly by improper cooling of the substrate during the injection-molding process. In optical applications, substrate birefringence is unwanted, since it interferes with the read function. Users, however, can not determine that it is birefringence that is causing read errors or poor performance of their CD-ROM applications--it is detected by special equipment and tests.
출처: www.geocities.com/columbiaisa/glossary_basic.htm
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| birth control |
Any method used to reduce births, including celibacy, delayed marriage, contraception; devices or medication that prevent implantation of fertilized zygotes, and induced abortions.
출처: highered.mcgraw-hill.com/sites/0070294267/student_...
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| birth control |
Any device used for the regulation of conception, pregnancy, and birth. 374
출처: highered.mcgraw-hill.com/sites/007241278x/student_...
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| birefringence |
(Nearly synonymous with double refraction.) Two different real parts of the refractive index for electromagnetic waves, identical except for their states of (orthogonal) polarization. By orthogonal is meant that the waves have opposite handedness, the same ellipticity, and the major axes of their vibration ellipses are perpendicular to each other. The most general birefringence is elliptical, specific examples of which are linear and circular. ...
출처: amsglossary.allenpress.com/glossary/browse
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| birth control |
the regulation of the number of children born, referring either to the prevention of pregnancy (by birth control pill, sterilization, etc) or the prevention of birth (by abortion, etc)
출처: www.american-depot.com/services/resources_gl_b.asp
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| BIR | cliff brake of California and Baja California having purple-brown leafstalks |
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| BIR | common violet of the eastern United States with large pale blue or purple flowers resembling pansies |
| BIR | any of various fungi of the family Nidulariaceae having a cup-shaped body containing several egg-shaped structure enclosing the spores |
| BIR | any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs |
| BIR | common trailing perennial milkwort of eastern North America having leaves like wintergreen and usually rosy-purple flowers with winged sepals |
| BIR | an effigy in the shape of a man to frighten birds away from seeds |
| BIR | an ornamental basin (usually in a garden) for birds to bathe in |
| BIR | a person with confused ideas |
| BIR | a cage in which a bird is kept |
| BIR | a catcher's mask with a strong wire face |
| BIR | a device for imitating a birdcall |
| BIR | the characteristic sound produced by a bird |