pollution that is rendered harmless by natural processes and so causes no permanent harm
balminess
Noun
the quality of weather that is deliciously mild and soothing
bad weather
Noun
weather unsuitable for outdoor activities
bleakness
Noun
a bleak and desolate atmosphere
befoulment
Noun
the state of being polluted
brow ptosis
Noun
sagging eyebrows
bow legs
Noun
outward curvature of the legs
bandy legs
Noun
outward curvature of the legs
biosafety
Noun
safety from exposure to infectious agents
base metal
Noun
a metal that is common and not considered precious
binary compound
Noun
chemical compound composed of only two elements
bromoform
Noun
colorless liquid haloform CHBr3
botulinum toxin
Noun
any of several neurotoxins that are produced by the anaerobic bacterium Clostridium botulinum
botulinum toxin A
Noun
a neurotoxin (trade name Botox) that is used clinically in small quantities to treat strabismus and facial spasms and other neurological disorders characterized by abnormal muscle contractions
buckminsterfullerene
Noun
a spheroidal fullerene
buckyball
Noun
a spheroidal fullerene
benzyl
Noun
the univalent radical derived from toluene
benzyl group
Noun
the univalent radical derived from toluene
benzyl radical
Noun
the univalent radical derived from toluene
benzoyl group
Noun
the univalent radical derived from benzoic acid
benzoyl radical
Noun
the univalent radical derived from benzoic acid
barium
Noun
a soft silvery metallic element of the alkali earth group
baryta
Noun
any of several compounds of barium
barium hydroxide
Noun
white poisonous crystals
barium monoxide
Noun
an oxide of barium
barium oxide
Noun
an oxide of barium
barium protoxide
Noun
an oxide of barium
barium dioxide
Noun
a white toxic powder obtained by heating barium oxide in air
barium peroxide
Noun
a white toxic powder obtained by heating barium oxide in air
base pair
Noun
one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands
berkelium
Noun
a radioactive transuranic element
beryllium
Noun
a light strong brittle grey toxic bivalent metallic element
bismuth
Noun
a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically)
bohrium
Noun
a transuranic element
boron
Noun
a trivalent metalloid element
bromine
Noun
a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens
butane
Noun
occurs in natural gas
bitter spar
Noun
a light colored mineral consisting of calcium magnesium carbonate
barite
Noun
a white or colorless mineral (BaSO4)
barytes
Noun
a white or colorless mineral (BaSO4)
baddeleyite
Noun
a mineral consisting of zirconium oxide
barium sulphate
Noun
a white or colorless mineral (BaSO4)
barium sulphate
Noun
a white insoluble radiopaque powder used as a pigment
bastnasite
Noun
a yellow-to-brown mineral that is a source of rare earth elements
bastnaesite
Noun
a yellow-to-brown mineral that is a source of rare earth elements
bauxite
Noun
a clay-like mineral
beryl
Noun
the chief source of beryllium
biotite
Noun
dark brown to black mica found in igneous and metamorphic rock
bone black
Noun
black substance containing char in the form of carbonized bone
bone char
Noun
black substance containing char in the form of carbonized bone