| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Exposure level (chemical) | Agriculture | The amount (concentration) of a chemical at the absorptive surfaces of an organism. (references) | |
| Sound exposure level | Physics | The squared weighted sound pressure integrated or summed over time reference to the standard pressure squared times one second and then converted to a level. This, if a sound having a level of 90 dB persists for 1 second the s. e. l. produced by that sound is 90 dB. If that sound persists for 10 seconds, the sound exposure level is 100 dB. If it persists for 100 seconds, the SEL is 110 dB, and so on. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
