bombycid moth
— Noun
– English
~ moderate-sized Asiatic moth whose larvae feed on mulberry leaves and produce silk
bee moth
— Noun
– English
~ moth whose larvae live in and feed on bee honeycombs
Brownian motion
— Noun
– English
~ the random motion of small particles suspended in a gas or liquid
burial mound
— Noun
– English
~ (archeology) a heap of earth placed over prehistoric tombs
Bernese mountain dog
— Noun
– English
~ 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
Balkan Mountains
— Noun
– English
~ the major mountain range of Bulgaria and the Balkan Peninsula
Brownian movement
— Noun
– English
~ the random motion of small particles suspended in a gas or liquid
bowel movement
— Noun
– English
~ a euphemism for defecation; "he had a bowel movement"
bran muffin
— Noun
– English
~ muffin containing bran
beer mug
— Noun
– English
~ a mug intended for serving beer
black mulberry
— Noun
– English
~ European mulberry having dark foliage and fruit
Botrychium multifidum
— Noun
– English
~ European fern with leathery and sparsely hairy fronds
Baron Munchausen
— Noun
– English
~ 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
— Noun
– English
~ an extravagantly loud outcry; "she screamed blue murder"
buccinator muscle
— Noun
– English
~ a muscle that flattens the cheek and retracts the angle of the mouth
Becker muscular dystrophy
— Noun
– English
~ 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
— Noun
– English
~ largest mammal ever known; bluish-grey migratory whalebone whale mostly of southern hemisphere