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| aflutter |
excited and nervous; fluttering. |
| amphetamine |
a drug that stimulates the central nervous system, depressing appetite and heightening activity. |
| antsy |
(informal) nervous; apprehensive. [1/2 definitions] |
| anxiety |
a feeling of being worried, nervous, or afraid that something bad will happen. |
| anxious |
feeling worried, nervous, or afraid about something. |
| autonomic |
in physiology, of or relating to the autonomic nervous system. [1/3 definitions] |
| autonomic nervous system |
the part of the nervous system in vertebrates that controls involuntary bodily processes, such as the operation of the heart, stomach, and glands; sympathetic and parasympathetic nervous systems together. |
| beriberi |
a disease of the nervous system, caused by lack of thiamine and characterized by paralysis of the extremities and by swelling or emaciation. |
| beta blocker |
any of a class of drugs that inhibit the absorption of adrenalin and the activity of the autonomic nervous system, and are used to control the heartbeat and relieve angina and hypertension. |
| botulism |
an often lethal disease of the nervous system caused by ingesting even small amounts of the toxin botulin, produced by a bacterium that grows in poorly preserved or spoiled foods. |
| bovine spongiform encephalopathy |
a fatal disease, also known as "mad cow disease," that affects the nervous system of cattle. |
| brain |
the organ inside the skull of humans and animals. The brain is the main part of the central nervous system. It controls the body's movements and activities and is the center of thought, memory, and feelings. [1/3 definitions] |
| brain imaging |
the branch of medicine that deals with producing images of the brain and nervous system; neuroimaging. [2 definitions] |
| buck fever |
the nervous excitement felt by novice hunters when they first sight game. |
| caffeine |
a bitter substance found in coffee, tea, chocolate, and some sodas. Caffeine stimulates the heart and nervous system and can cause a person to stay awake and alert. |
| calm down |
to become calm; to stop being angry, tense, nervous, or agitated. [1/3 definitions] |
| calming |
causing one to feel calm; causing one to feel less nervous, tense, or upset. |
| chlorpromazine |
a drug used to treat nervous upset, nausea, and certain mental disorders. |
| chorea |
a disease of the nervous system in humans and dogs whose symptoms include uncontrollable jerking movements of the face, arms, and legs. |
| conduction |
the transmission or transfer, as of heat, electrical charges, or nervous impulses, through a medium. [1/2 definitions] |
| dextroamphetamine |
a solid compound used to stimulate the central nervous system and control the appetite. |
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