what is toxic:
What is belonging or pertaining to a Venom or toxin designated as toxic. In this sense, a toxic substance is one that produces effects, alterations or disturbance in the functioning of a living organism, and that may even cause death.
A toxic substance is measured according to their degree of toxicity, i.e., its inherent capacity to cause damage to an organism. These substances may come into contact with the body in several ways: inhalation, absorption, application, ingestion, injection or, even, can be developed in own inside a body. From there which is classifiable well as toxicants endogenous (that come from the interior of an organism) or exogenous (coming from abroad).
Exogenous toxins can come from animals (the poison of the snake, for example), plant (some fungi) organisms or can be toxic synthetic, developed by human beings through chemical processes.
The word, as such, comes from the latin toxĭcum, which in turn comes from the Greek φάρμακον (toxikon pharmakon) τοξικὸν, which means ‘poison for poison arrows’.
As Toxicology are called science focused on the study of toxic substances. As such, the Toxicology is responsible for determining aspects such as physico-chemical composition, its ability to produce changes in living organisms, as well as the mechanisms through which produced similar changes and ways to counter them. In addition, Toxicology is responsible for detecting toxic agents, identify them, and to determine their degree of toxicity. Professionals in this field, on the other hand, are referred to as toxicologists.
Toxic and poison
Poison, as well as a toxic substance, has the ability to cause serious damage in a living organism. However, the venom is characterized as a toxic substance used deliberately in order to produce adverse effects on the functioning of the vital organs of an individual. Such effects can, or not, cause death. In this sense, what distinguishes the poison is that it is a toxic substance used for criminal purposes.
Tóxico in pharmacology
In pharmacology, as toxic effect is designated the unwanted action of a drug on the body of an individual, as a result, usually an excessive dose. From there the toxic effect directly dependent on two factors: dose, i.e. the amount of medication which expose the body, and the time of exposure, or the amount of time during which exposure is prolonged.