Definition of "toxicologist" [tox•i•col•o•gist]

• A scientist or physician who specializes in toxicology. (noun)

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• "The lecturer urged that the science of medicine (for the poisons of the toxicologist were the medicines of the physician) must be experimental."
• "I don ` t think any kind of toxicologist could make that determination."
• "Roger McClellan, a toxicologist who led the panel during George H. W. Bush's presidency and has consulted for oil and gas companies on air-quality issues, says clinical studies of human volunteers exposed to controlled levels of ozone don't provide "convincing evidence of clinically significant effects" below 80 parts per billion."