The bio-hazard symbol indicates that there is a living thing that is dangerous- such as an contagious disease organism. See the Related Links at the bottom of this page to see the symbol and a short article on the developer.
The infectious substance sign means that the contents of the container or room is capable of causing infectious disease.
it means that the chemical or substance is poisonous
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Identification or Infectious Disease.ID in medical terms typically stands for infectious disease.In a medical context, ID may mean infectious disease or identifying data.
Biohazardous infectious material refers to any substance that contains potentially harmful microorganisms, such as bacteria or viruses, that can cause disease in humans or animals. These materials require special handling and disposal procedures to prevent the spread of infection.
The () sign in a chemical reaction signifies that a substance is being added or combined with another substance.
"Malignant" means very virulent or infectious.
It means that you can catch it from another person.
Huntington's disease is a genetic disease (not carried by an infectious vector) and so, it is not infectious.
The warning sign "irritant" means that the substance in question may cause irritation to the skin, eyes, or respiratory system upon contact or exposure. It is important to handle the substance with care, use protective equipment when necessary, and seek medical attention if irritation occurs.
I'm hoping you mean epidemiology. It is the study of infectious diseases
The noun infection has the adjective form infectious (which can also simply mean tending to spread, as in infectious laughter). The adverb form is infectiously.