Nouns denoting substances

animal toxin
a toxin resembling bacterial toxins in its antigenic properties that is found in the fluids of certain animals
a plaster now made mostly from Portland cement and sand and lime; applied while soft to cover exterior walls or surfaces
raw wool
wool in its natural condition; not refined or processed
hypothetical universal solvent once sought by alchemists
a mineral consisting of strontium sulphate
a purplish dye obtained from orchil lichens
a steroid containing a ketone group
base pair
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; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA
writing pad
a pad of paper on which messages can be written
an antacid
hydrogen atom
an atom of hydrogen
vitamin precursor; a substance that is converted into a vitamin in animal tissues
the dissolved matter in a solution; the component of a solution that changes its state
18-karat gold
an alloy that contains 75 per cent gold
sparkle metal
matte that has 74 percent copper
cassava starch
a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics
a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi
(biology) a substance in which specimens are preserved or displayed
a substance used to ignite or kindle a fire
Wood's metal
a fusible alloy that is half bismuth plus lead, tin, and cadmium; melts at about 160 degrees Fahrenheit
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