The Watcher took a step back at his lethal tone.
Hydrocyanic acid is a protoplasmic poison, directly lethal to all living tissues, whether in a plant or an animal.
The unit of antitoxin in Ehrlich's new standard is the amount requisite to antagonize i oo times the minimum lethal dose of a particular toxin to a guinea-pig of 250 grm.
If his sudden stillness wasn't a warning, his purr turned to a low, lethal growl.
==Toxicology== Antimony is one of the "protoplasmic" poisons, directly lethal to all living matter.
"You get one warning," he said in a tone far more lethal than he'd ever used with her.
A full head smaller than him, Darkyn was nonetheless the most lethal creature Gabriel had ever known.
In large toxic and in lethal doses the activity of the spinal cord is lowered.
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.
Whilst quinine possesses this power, however, it is far more potently lethal to a particular form of animal organism known as the plasmodium malariae.
Deidre had never seen him like this, as a quietly commanding figure, capable of lethal force one moment and gentle kisses the next.
Lean and youthful, he was unthreatening in appearance but the single most lethal creature Gabriel knew.
If you cause more damage, Darkyn said in a soft, lethal voice.
He kept his voice low, lethal, and stopped just short of their bodies touching.
Its back reached her shoulder, and it moved with restrained, lethal power.
It is by no means the most powerful poison known, for such an alkaloid as pseud-aconitine, which is lethal in dose of about 1/200 of a grain, is some hundreds of times more toxic, but prussic acid is by far the most rapid poison known, a single inhalation of it producing absolutely instantaneous death.
They are based on the experimental toxic, as distinguished from lethal dose.
So valuable are certain of the properties of atropine that it is often desirable to give doses of one-twentieth or onetenth of a grain; but these will never be ventured upon by the practitioner who is ignorant of the great interval between the minimum toxic and the minimum lethal dose.
Do not employ such physiological antagonists as pilocarpine or morphine, for the lethal actions of all these drugs exhibit not mutual antagonism but coincidence.
For example, the amount necessary to neutralize five times the lethal dose being determined, twenty times that amount will neutralize a hundred times the lethal dose.
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.
Some drugs given in excess are poisons to all forms of protoplasm, but when given in doses much short of the lethal they usually exhibit a distinct tendency to affect specially, and at an early period, certain organs or tissues, and hence result differences in action; others may act only on certain organs, leaving the others practically untouched.
The scary, confusing world she.d entered weeks before crystallized and grew clear as she watched the lethal battle.
Kiera would never agree to marry someone in so short of a time, but to agree in any amount of time to a man as lethal in appearance as this?
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.
With astonishing agility, the Grey God outmaneuvered lightening, weaving through the bursts of purple fire in a lethal dance.
The procedure consists in most cases in spraying the affected plants with poisonous solutions or emulsions, or in (lusting them with fungicidal or insecticidal powders, or applying the fumes of lethal gases.
A large lethal dose kills by this action, but the minimum lethal dose by its combined action on the respiration and the heart.
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.