Nouns denoting substances
- tragacanth
- a gum used in pharmacy, adhesives, and textile printing
- speck
- (nontechnical usage) a tiny piece of anything
- tool steel
- alloy steel that is suitable for making tools; is hard and tough and can retain a cutting edge
- SOD
- an enzyme that catalyzes the conversion of superoxide into hydrogen peroxide and oxygen
- phenylalanine
- an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body
- Sb
- a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
- pyrocellulose
- nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder
- gold dust
- the particles and flakes (and sometimes small nuggets) of gold obtained in placer mining
- turpentine
- volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally
- oleoresin capiscum
- an oleoresin extracted from the capsicum pepper plant
- norgestrel
- synthetic progestin used in oral contraceptives
- Dy
- a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
- Portland cement
- a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result
- rudaceous rock
- a sedimentary rock formed of coarse-grained material
- superoxide
- a metallic oxide containing the univalent anion O2-
- catalase
- enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into oxygen and water
- icicle
- ice resembling a pendent spear, formed by the freezing of dripping water
- dihydric alcohol
- any of a class of alcohols having 2 hydroxyl groups in each molecule
- mould
- loose soil rich in organic matter
- mycotoxin
- a toxin produced by a fungus
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