Definitions
from The Century Dictionary.
- noun The non-volatile, oily, active constituent of poison-ivy and similar plants. It is insoluble in water and cannot, therefore, be removed from the skin by washing. Alcohol readily dissolves it, and it is quickly destroyed by an alcoholic solution of lead acetate (sugar of lead).
Etymologies
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Examples
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The irritant in all species of poison ivy, poison oak and poison sumac is an oily resin known as toxicodendrol.
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