The degree to which a substance is poisonous; the harmful or toxic property of something.
この化学物質の毒性は非常に高い。
This chemical has very high toxicity.
新しい薬剤の毒性を試験で調べた。
They tested the toxicity of the new drug in experiments.
低濃度でも慢性的に毒性を示すものがある。
Some substances show chronic toxicity even at low concentrations.
Tending to be toxic or poisonous; used attributively (e.g. 'toxic', 'poisonous').
毒性のある植物には触れないでください。
Don't touch plants that are poisonous.
そのカビは毒性が強く、注意が必要だ。
That mold is highly toxic and requires caution.
毒性の高い廃液は専門業者が処理するべきだ。
Highly toxic waste liquid should be handled by specialists.