| D009622 |
Noise |
Any sound which is unwanted or interferes with HEARING other sounds. |
Noise Pollution,Noises,Pollution, Noise |
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| D010969 |
Plastics |
Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Plastic |
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| D011482 |
Protective Devices |
Devices designed to provide protection against injury. |
Safety Devices,Device, Protective,Device, Safety,Devices, Protective,Devices, Safety,Protective Device,Safety Device |
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| D004430 |
Ear Protective Devices |
Personal devices for protection of the ears from loud or high intensity noise, water, or cold. These include earmuffs and earplugs. |
Earplugs,Hearing Protective Devices,Earmuffs,Device, Ear Protective,Device, Hearing Protective,Devices, Ear Protective,Devices, Hearing Protective,Ear Protective Device,Earmuff,Earplug,Hearing Protective Device,Protective Device, Ear,Protective Device, Hearing,Protective Devices, Ear,Protective Devices, Hearing |
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| D004548 |
Elasticity |
Resistance and recovery from distortion of shape. |
|
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| D014586 |
USSR |
A country located from the Baltic and Black seas to the Pacific Ocean and, for a time including 15 Soviet Socialist Republics. The capital was Moscow. |
Soviet Union,Union of Soviet Socialist Republics |
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