an amino acid that does not occur in proteins but is an intermediate in the conversion of ornithine to arginine
cysteine
Noun
an amino acid containing sulfur that is found in most proteins
cystine
Noun
a crystalline amino acid found in proteins (especially keratin)
cinnamene
Noun
a colorless oily liquid
chelate compound
Noun
a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
cerotic acid
Noun
a white solid fatty acid found in waxes (such as beeswax)
chlorate
Noun
any salt of chloric acid
chloric acid
Noun
(HClO3) a strong unstable acid with an acrid odor found in chlorate salts
chlorous acid
Noun
(HClO2) a strongly oxidizing acid
chemical group
Noun
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
colloid
Noun
a mixture with properties between those of a solution and fine suspension
carbon nanotube
Noun
a fullerene molecule having a cylindrical or toroidal shape
chemical element
Noun
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
colloidal gel
Noun
a colloid in a more solid form than a sol
colloidal solution
Noun
a colloid that has a continuous liquid phase in which a solid is suspended in a liquid
colloidal suspension
Noun
a colloid that has a continuous liquid phase in which a solid is suspended in a liquid
canavanine
Noun
an amino acid found in the jack bean
curium
Noun
a radioactive transuranic metallic element
columbium
Noun
a former name for niobium
cadmium
Noun
a soft bluish-white ductile malleable toxic bivalent metallic element
calcium
Noun
a white metallic element that burns with a brilliant light
californium
Noun
a radioactive transuranic element
carbon atom
Noun
an atom of carbon
carbon 14
Noun
a radioactive isotope of carbon
cerium
Noun
a ductile grey metallic element of the lanthanide series
cesium
Noun
a soft silver-white ductile metallic element, liquid at normal temperatures
caesium
Noun
a soft silver-white ductile metallic element, liquid at normal temperatures
cesium 137
Noun
a radioactive isotope of cesium used in radiation therapy
chlorine
Noun
a common nonmetallic element belonging to the halogens
chromium
Noun
a hard brittle multivalent metallic element
cobalt
Noun
a hard ferromagnetic silver-white bivalent or trivalent metallic element
cobalt 60
Noun
a radioactive isotope of cobalt with mass number 60
cassiterite
Noun
a hard heavy dark mineral that is the chief source of tin
celestite
Noun
a mineral consisting of strontium sulphate
cerussite
Noun
a mineral consisting of lead carbonate that is an important source of lead
chalcocite
Noun
a heavy grey mineral that is an ore of copper
copper glance
Noun
a heavy grey mineral that is an ore of copper
chalcopyrite
Noun
a yellow copper ore (CuFeS2) made up of copper and iron sulfide
copper pyrites
Noun
a yellow copper ore (CuFeS2) made up of copper and iron sulfide
china clay
Noun
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar)
china stone
Noun
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar)
chlorite
Noun
a generally green or black mineral
chromite
Noun
a brownish-black mineral
chromogen
Noun
a compound that can be converted to a pigment
chrysoberyl
Noun
a rare hard yellow green mineral consisting of beryllium aluminate in crystal form
cobalt ultramarine
Noun
greenish-blue pigment consisting essentially of cobalt oxide and alumina
cobaltite
Noun
a rare silvery-white mineral
columbite
Noun
a black mineral that is an ore of niobium and tantalum
columbite-tantalite
Noun
a valuable black mineral combining niobite and tantalite