belles-lettres
— Navneord
– Engelsk
～ creative writing valued for esthetic content
Boston lettuce
— Navneord
– Engelsk
～ lettuce with relatively soft leaves
Bibb lettuce
— Navneord
– Engelsk
～ lettuce with relatively crisp leaves
butterhead lettuce
— Navneord
– Engelsk
～ lettuce with relatively soft leaves in a loose head; easily broken or bruised
Branta leucopsis
— Navneord
– Engelsk
～ European goose smaller than the brant; breeds in the far north
Blissus leucopterus
— Navneord
– Engelsk
～ small black-and-white insect that feeds on cereal grasses
Betula leutea
— Navneord
– Engelsk
～ tree of eastern North America with thin lustrous yellow or grey bark
background level
— Navneord
– Engelsk
～ the amplitude level of the undesired background noise
biosafety level 3
— Navneord
– Engelsk
～ exposure to infectious agents that can be transmitted by the respiratory route and which can cause serious infection
biosafety level 4
— Navneord
– Engelsk
～ exposure to exotic infectious agents that pose a high risk of life-threatening disease and can be transmitted as an aerosol and for which there is no vaccine or therapy
biosafety level 2
— Navneord
– Engelsk
～ exposure to infectious agents that can cause disease in humans but whose potential for transmission is limited
biosafety level
— Navneord
– Engelsk
～ the level of safety from exposure to infectious agents; depends on work practices and safety equipment and facilities
biosafety level 1
— Navneord
– Engelsk
～ exposure only to infectious agents that do not ordinarily cause human disease
brightness level
— Navneord
– Engelsk
～ the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
Basque Fatherland and Liberty
— Navneord
– Engelsk
～ a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party; want to create an independent homeland in Spain's western Pyrenees; "in 1968 ETA launched a campaign of political assassinations of government officials"
beggar's lice
— Navneord
– Engelsk
～ Eurasian and North American plants having small prickly nutlets that stick to clothing
beggar's lice
— Navneord
– Engelsk
～ any of various tropical and subtropical plants having trifoliate leaves and rough sticky pod sections or loments
beggar lice
— Navneord
– Engelsk
～ any of various tropical and subtropical plants having trifoliate leaves and rough sticky pod sections or loments
beggar lice
— Navneord
– Engelsk
～ Eurasian and North American plants having small prickly nutlets that stick to clothing
beard lichen
— Navneord
– Engelsk
～ greenish grey pendulous lichen growing on trees