Hydrocyanic acid is a protoplasmic poison, directly lethal to all living tissues, whether in a plant or an animal.
A large lethal dose kills by this action, but the minimum lethal dose by its combined action on the respiration and the heart.
The patient who has swallowed a toxic or lethal dose of laudanum, for instance, usually passes at once into the narcotic state, without any prior excitement.
If you cause more damage, Darkyn said in a soft, lethal voice.
They are based on the experimental toxic, as distinguished from lethal dose.
It is also to be noted that, as in the case of poisons of known constitution, each toxin has a minimum lethal dose which is proportionate to the weight of the animal and which can be ascertained with a fair degree of accuracy.
With astonishing agility, the Grey God outmaneuvered lightening, weaving through the bursts of purple fire in a lethal dance.
A toxic dose causes unpleasant symptoms, but in certain cases, such as this, it may require very many times a toxic dose to produce the lethal effect.
For their sake, Xander subdued the lethal instinct that made him want to snatch Jessi, haul her away somewhere quiet and do whatever it took to pull the truth from her.
A full head smaller than him, Darkyn was nonetheless the most lethal creature Gabriel had ever known.