- A condition of displaying, revealing, exhibiting, or making accessible.
- In dentistry, loss of hard tooth structure covering the dental pulp due to caries, dental instrumentation, or trauma.
- Proximity or contact with a source of a disease agent in such a manner that effective transmission of the agent or harmful effects of the agent may occur.
- The amount of a factor to which a group or individual was exposed; in contrast to the dosage, the amount that enters or interacts with the organism.
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Examples: glitazone, GI cocktail, etc.