Chloropicrin
Chloropicrin: A riot control agent or “tear gas.” See: Riot control agent poisoning.
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- Chlorpyrifos
Chlorpyrifos: An organophosphate insecticide that has adverse neurological effects. Also known as Dursban. Introduced in 1965, chlorpyrifos was a well known home and garden insecticide, and at one time it was one of the most widely used household pesticides in the US. Chlorpyrifos causes weakness, vomiting, diarrhea and other ill effects in children. It can […]
- Chloroprene
Chloroprene: A possible carcinogen (cancer-causing agent) primarily used in the production of the elastomer polychloroprene (neoprene). The US government in 2000 classified chloroprene as “reasonably anticipated to be a human carcinogen.” In laboratory animal studies of chloroprene, cancer was observed in multiple organs of multiple species following long-term inhalation exposures.
- Choana
Choana: An opening at the back of the nasal passage (there is a left and a right side) that empties into the space behind the nose called the nasopharynx, where the adenoids and eustachian tube are. The passage way continues down into the back of the mouth and into the throat.
- Choanal
Choanal: Pertaining to the choana, the passageway from the back of one side of the nose to the throat. The choana is shaped like the opening of a train tunnel in a mountain which then opens into the space called the nasopharynx. The choanae must be open to permit breathing through the nose. Choanal atresia […]
- Choanal atresia
Choanal atresia: Blockage of the choana, the passageway from the back of one side of the nose to the throat. The choana is shaped like an inverted funnel which opens into the upper throat. There are two choanae. The choanae must be open to permit breathing through the nose. Choanal atresia can occur as an […]