Examlex
Viruses constitute the fourth domain of life in current biological classification schemes.
Nitrite Ion
A polyatomic ion with a chemical formula of NO2-, commonly found in some foods and the environment, and known for its role in biological processes.
Branched Alkane
A type of alkane hydrocarbon with a tree-like structure, as opposed to linear alkanes, which improves fuel quality in terms of octane rating.
Methylpropane
Methylpropane, also known as isobutane, is a branched-chain alkane with the formula C4H10, used as a refrigerant and a propellant in aerosols.
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