parathion /para·thi·on/ (-thi´on) a highly toxic agricultural insecticide.
parathion
par·a·thi·on (p r  -th   n)n. A highly poisonous organic phosphate insecticide that is an irreversible inhibitor of cholinesterase. |
parathion
an agricultural insecticide highly toxic to humans and animals. See also organophosphorus compound.
parathion-methyl
a less toxic form of parathion.
parathion
Toxicology An acetyl-cholinesterase-inhibiting organophosphate insecticide and neurotoxin; acute intoxication is characterized by nicotinic and muscarinic effects which, when severe, may cause rapid respiratory failure;
chronic intoxication may cause demyelinating neuropathy and axonal degeneration Treatment Atropine. See Organophosphate poisoning.
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