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Glossary

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Absolute:

a highly concentrated viscous, semi-solid or solid perfume material, usually obtained by alcohol extraction from the concrete.

Acid:

a compound usually having an sour taste and capable of neutralizing alkalis, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base.

Algae:

any of numerous groups of eukaryotic one-celled organisms that contain chlorophyll, usually flourish in aquatic or wet environments, and lack true roots, stems, or leaves, including seaweeds and many plankton.

Alkali:

see base.

Allergy:

hypersensitivity caused by a foreign substance, small doses of which produce a violent bodily reaction.

Analgesic:

remedy to relieve or deaden pain.

Antibiotic:

prevents the growth of, or destroys, bacteria.