poisoning

noun

1. (countable, uncountable)The administration of a poison.

   “The number of young children in the US who have died from opioid overdoses has increased significantly, according to a new study on accidental poisonings of children 5 and younger.”

2. (countable, uncountable)The state of being poisoned.

   “Manganism has been known about since the 19th century, when miners exposed to ores containing manganese[…]began to totter, slur their speech and behave like someone inebriated. The poisoning was irreversible, and soon ended in psychosis and death.”

verb

1. (form-of, gerund, participle, present)present participle and gerund of poison