| luktforurensning |
olfactory pollution (Pollution produced by gaseous emissions in the atmosphere that, even in very small amounts, may cause injuries or a condition of general unease or sickness to persons living in the vicinity) |
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| luktplage |
odour nuisance |
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| luminositet |
luminosity (The functional relationship between stellar magnitude and the number and distribution of stars of each magnitude interval. Also known as relative luminosity factor) |
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| lungesykdom |
pulmonary disease (Any disease pertaining to the lungs) |
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| lut |
lye (The alkaline solution that is obtained from the leaching of wood ashes) |
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| lyd |
sound (Auditory sensation produced by the oscillations, stress, pressure, particle displacement, and particle velocity in a medium with internal forces; pressure variation that the human ear can detect) |
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| lyddemper |
silencer (Any device designed to reduce noise, especially the device in the exhaust system of a motor vehicle) |
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| lyddemping |
soundproofing (Reducing or eliminating reverberation in a room by placing sound-absorbing materials on the walls and ceiling) |
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| lydemisjon |
sound emission (Diffusion into the environment of a sound emitted from a given source) |
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| lydforplantning |
sound propagation (The travelling of acoustic waves in the atmosphere with a speed independent of their amplitude. The speed only depends on the acoustic medium and is proportional to the square route of the absolute temperature for any given medium) |
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| lydimmisjon |
sound immission (The introduction in the environment of noise deriving from various sources that can be grouped in: transportation activities, industrial activities and daily normal activities) |
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| lydisolasjon |
acoustic insulation (The process of preventing the transmission of sound by surrounding with a nonconducting material) |
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| lydmåling |
sound measurement (Because of the large variations in sound magnitudes, and because the human hearing sensation seems to vary in a logarithmic way, logarithms are used in measurement of sound. The sound pressure level is given in decibels (dB)) |
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| lydnivå |
sound level (The sound pressure level (in decibels) at a point in a sound field, averaged over the audible frequency range and over a time interval) |
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| lydoverføring |
sound transmission (Passage of a sound wave through a medium or series of media) |
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| lydstyrke |
loudness (The magnitude of the physiological sensation produced by a sound, which varies directly with the physical intensity of sound but also depends on frequency of sound and waveform) |
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| lymfekarsystem |
lymphatic system (A system of vessels and nodes conveying lymph in the vertebrate body, beginning with capillaries in tissue spaces and eventually forming the thoracic ducts which empty in the subclavian veins) |
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| lys |
light (Electromagnetic radiation that is capable of causing a visual sensation) |
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| lysimetri |
lysimetry (The measurement of the water percolating through soils and the determination of the materials dissolved by the water) |
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| lysnedbryting |
photodegradation (The capability of being decomposed by prolonged exposure to light) |
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