Because Parkinsonâs disease symptoms are due to a deficiency of the brain chemical dopamine, the main drug treatments help increase dopamine levels in the brain. Levadopa, usually combined with carbidopa, is the standard drug treatment.
Here are all the possible meanings and translations of the word poison-ivy. Wiktionary(0.00 / 0 votes)Rate this definition: poison-ivy(Noun) A woody vine plant in the family Anacardiaceae well-known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people.
Learning the meaning of these root words can tremendously help your understanding of the connection between plant features, scientific names, and common names. For example, poison ivy has a very informative scientific name: Toxicodendron radicans. âToxicoâ is a Latin root word meaning âpoison.â This ties in directly to the common name, and reflects this vineâs production of an irritating oil (urushiol) that causes a skin rash.