Having a strong odor that stings the nose, said especially of acidic or spicy substances.
Stinging; acerbic.
Having a sharp and stiff point.
Having a strong taste that stings the tongue, said especially of hot (spicy) food, which has a strong and sharp or bitter taste.
Of animals, plants, or substances: extremely venomous or poisonous.
Of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis.
Extremely hostile or malicious; intensely acrimonious.
Of a disease or disease-causing agent: malignant, able to cause damage to the host.