a polyvalent metallic element that resembles chromium and tungsten in its properties
metallic element
Noun
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
metallized dye
Noun
acid dye in which the negative ion contains a chelated metal atom
magnesite
Noun
a white mineral consisting of magnesium carbonate
malachite
Noun
a green or blue mineral used as an ore of copper and for making ornamental objects
maltha
Noun
a thick black tar intermediate between petroleum and asphalt
mineral tar
Noun
a thick black tar intermediate between petroleum and asphalt
manganese tetroxide
Noun
an oxide of manganese found naturally as hausmannite
manganite
Noun
a black mineral consisting of basic manganese oxide
marl
Noun
a loose and crumbling earthy deposit consisting mainly of calcite or dolomite
mica
Noun
any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves
millerite
Noun
a yellow mineral consisting of nickel sulfide
molybdenite
Noun
a mineral resembling graphite that is valued as the chief source of molybdenum and its compounds
monazite
Noun
a reddish-brown mineral containing rare earth metals
monomer
Noun
a simple compound whose molecules can join together to form polymers
muscovite
Noun
a colorless or pale brown mica with potassium
mineral wax
Noun
a waxy mineral that is a mixture of hydrocarbons and occurs in association with petroleum
methanol
Noun
a light volatile flammable poisonous liquid alcohol
methyl alcohol
Noun
a light volatile flammable poisonous liquid alcohol
mispickel
Noun
a silver-white or grey ore of arsenic
mineral pitch
Noun
a dark bituminous substance found in natural beds and as residue from petroleum distillation
magnesia
Noun
a white solid mineral that occurs naturally as periclase
magnesium oxide
Noun
a white solid mineral that occurs naturally as periclase
mucilage
Noun
cement consisting of a sticky substance that is used as an adhesive
mucilage
Noun
a gelatinous substance secreted by plants
marine glue
Noun
glue that is not water soluble
Muntz metal
Noun
an alpha-beta brass that is about 60% copper and 40% iron
moss agate
Noun
an agate resembling moss with brown, black, or green markings
marlite
Noun
metamorphic rock with approximately the same composition as marl
marlstone
Noun
metamorphic rock with approximately the same composition as marl
metamorphic rock
Noun
rock altered by pressure and heat
mosaic gold
Noun
a yellow pigment sometimes suspended in lacquer
mucin
Noun
a nitrogenous substance found in mucous secretions
megestrol
Noun
a synthetic progestational compound used to treat endometrial carcinoma
megestrol acetate
Noun
a synthetic progestational compound used to treat endometrial carcinoma
mineral wool
Noun
a light fibrous material used as an insulator
melanin
Noun
insoluble pigments that account for the color of e.g. skin and scales and feathers
methylene blue
Noun
a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
methylthionine chloride
Noun
a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
methyltestosterone
Noun
an androgenic compound contained in drugs that are used to treat testosterone deficiency and female breast cancer and to stimulate growth and weight gain
methyl orange
Noun
an azo dye used as an acid-base indicator
mother-of-pearl
Noun
the iridescent internal layer of a mollusk shell
malonylurea
Noun
a white crystalline acid derived from pyrimidine
manioca
Noun
a starch made by leaching and drying the root of the cassava plant
monounsaturated fatty acid
Noun
an unsaturated fatty acid whose carbon chain has one double or triple valence bond per molecule
mestranol
Noun
a synthetic form of estrogen used in combination with a progestin in oral contraceptives
margaric acid
Noun
a colorless crystalline synthetic fatty acid
morocco
Noun
a soft pebble-grained leather made from goatskin
mineralocorticoid
Noun
hormone that is one of the steroids of the adrenal cortex that influences the metabolism of sodium and potassium