Noxious describes any happening that is perceived as harmful. It may also refer to:
*
Poison
A poison is any chemical substance that is harmful or lethal to living organisms. The term is used in a wide range of scientific fields and industries, where it is often specifically defined. It may also be applied colloquially or figurati ...
, substances that can harm or kill
*
Noxious weed
A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or lives ...
, a plant designated by the government as injurious to public health, agriculture, recreation, wildlife or property
*
Noxious stimulus
A noxious stimulus is a stimulus strong enough to threaten the body's integrity (i.e. cause damage to tissue). Noxious stimulation induces peripheral afferents responsible for transducing pain (including A-delta and C- nerve fibers, as well a ...
, an actually or potentially tissue damaging event, may be mechanical, chemical or thermal
*
Federal Noxious Weed Act of 1974
The Federal Noxious Weed Act of 1974 ("FNWA", ) established a federal program to control the spread of noxious weeds. The United States Secretary of Agriculture was given the authority to declare plants "noxious weeds", and limit the interstate ...
, a United States law that established a federal program to control the spread of noxious weeds
{{dab