bee moth
— Navneord
– Engelsk
～ moth whose larvae live in and feed on bee honeycombs
Brownian motion
— Navneord
– Engelsk
～ the random motion of small particles suspended in a gas or liquid
burial mound
— Navneord
– Engelsk
～ (archeology) a heap of earth placed over prehistoric tombs
Bernese mountain dog
— Navneord
– Engelsk
～ large powerful long-haired black-coated Swiss dog with deep tan or russet markings on legs and white blaze and feet and chest marking; formerly used for draft
Brewer's mountain heather
— Navneord
– Engelsk
～ semi-prostrate evergreen herb of western United States
Balkan Mountains
— Navneord
– Engelsk
～ the major mountain range of Bulgaria and the Balkan Peninsula
Brownian movement
— Navneord
– Engelsk
～ the random motion of small particles suspended in a gas or liquid
bowel movement
— Navneord
– Engelsk
～ a euphemism for defecation; "he had a bowel movement"
bran muffin
— Navneord
– Engelsk
～ muffin containing bran
beer mug
— Navneord
– Engelsk
～ a mug intended for serving beer
black mulberry
— Navneord
– Engelsk
～ European mulberry having dark foliage and fruit
Botrychium multifidum
— Navneord
– Engelsk
～ European fern with leathery and sparsely hairy fronds
Baron Munchausen
— Navneord
– Engelsk
～ German raconteur who told preposterous stories about his adventures as a soldier and hunter; his name is now associated with any telling of exaggerated stories or winning lies (1720-1797)
blue murder
— Navneord
– Engelsk
～ an extravagantly loud outcry; "she screamed blue murder"
buccinator muscle
— Navneord
– Engelsk
～ a muscle that flattens the cheek and retracts the angle of the mouth
Becker muscular dystrophy
— Navneord
– Engelsk
～ a form of muscular dystrophy that sets in in adolescence or adulthood and progresses slowly but will affect all voluntary muscles; characterized by generalized weakness and muscle wasting that affects limb and trunk muscles first; similar to Duchenne's muscular dystrophy but less severe; inheritance is X-linked recessive (carried by females but affecting only males)
Balaenoptera musculus
— Navneord
– Engelsk
～ largest mammal ever known; bluish-grey migratory whalebone whale mostly of southern hemisphere
blushing mushroom
— Navneord
– Engelsk
～ yellowish edible agaric that usually turns red when touched
brain mushroom
— Navneord
– Engelsk
～ a poisonous gyromitra; the surface of the fertile body is smooth at first and becomes progressively undulating and wrinkled (but never truly pitted); color varies from dull yellow to brown