| Library / English Dictionary |
CAFFEINE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
Synonyms:
Classified under:
Hypernyms ("caffeine" is a kind of...):
alkaloid (natural bases containing nitrogen found in plants)
Holonyms ("caffeine" is a substance of...):
coffee; java (a beverage consisting of an infusion of ground coffee beans)
tea (a beverage made by steeping tea leaves in water)
Context examples:
Adding another key finding to the on-going debate on how caffeine affects our health, new research states that it may not be harmful to the heart.
(3 Cups Of Coffee Daily Could Improve Heart Function, The Titi Tudorancea Bulletin)
Researchers also noted how much water and caffeine the students consumed, and how long they spent outdoors each day.
(Hot Dorm Rooms Could Affect Students' Memory, Sadie Witkowski/VOA)
Due to the structural similarity to adenosine, caffeine binds to and blocks adenosine receptors, thereby preventing the inhibitory effects of adenosine on nerve cells.
(Caffeine, NCI Thesaurus)
Caffeine increases brain activity, alertness, attention, and energy.
(Caffeine, NCI Dictionary)
Due to the alkaloid caffeine, its main effect is stimulation.
(Black Tea, NCI Thesaurus)
To compare planets by their metallicities, scientists use the sun as a point of reference, almost like describing how much caffeine beverages have by comparing them to a cup of coffee.
('Warm Neptune' Has Unexpectedly Primitive Atmosphere, NASA)
Nicotine, caffeine, codeine, and vincristine are alkaloids.
(Alkaloid, NCI Dictionary)
A commercial combination preparation, by Watson Pharmaceuticals, of acetaminophen, butalbital, and caffeine.
(Fioricet, NCI Thesaurus)
This SDTM class captures investigational, therapeutic and other treatments that are administered to the subject (with some actual or expected physiological effect) either as specified by the study protocol (e.g., exposure to study drug), coincident with the study assessment period (e.g., concomitant medications), or self-administered by the subject (such as use of alcohol, tobacco, or caffeine).
(CDISC Interventions Class, NCI Thesaurus)
EXAMPLE(S): aspirin, tobacco, caffeine.
(Material Name Code, NCI Thesaurus/BRIDG)
