| Learning / English Dictionary |
AR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A state in south central United States; one of the Confederate states during the American Civil War
Synonyms:
AR; Ark.; Arkansas; Land of Opportunity
Classified under:
Nouns denoting spatial position
Instance hypernyms:
American state (one of the 50 states of the United States)
Meronyms (parts of "AR"):
White; White River (a tributary of the Mississippi River that flows southeastward through northern Arkansas and southern Missouri)
Saint Francis; Saint Francis River; St. Francis; St. Francis River (a tributary of the Mississippi River that rises in Missouri and flows southeastward through Arkansas)
Ozark Mountains; Ozark Plateau; Ozarks (an area of low mountains in northwestern Arkansas and southeastern Missouri and northeastern Oklahoma)
Ouachita; Ouachita River (a river that rises in western Arkansas and flows southeast into eastern Louisiana to become a tributary of the Red River)
Arkansas; Arkansas River (a river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River)
Texarkana (a town in southwest Arkansas on the Texas border adjacent to Texarkana, Texas)
Pine Bluff (a town in southeast central Arkansas on the Arkansas River)
capital of Arkansas; Little Rock (the state capital and largest city of Arkansas in the central part of Arkansas on the Arkansas River)
Jonesboro (a town in northeast Arkansas)
Hot Springs (a town in west central Arkansas; a health resort noted for thermal springs)
Fort Smith (a town in western Arkansas on the Arkansas River at the Oklahoma border)
Fayetteville (a university town in northwestern Arkansas in the Ozarks)
Hot Springs National Park (a national park in Arkansas featuring ancient hot springs; bathing is said to have therapeutic effects)
Holonyms ("AR" is a part of...):
America; the States; U.S.; U.S.A.; United States; United States of America; US; USA (North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776)
Holonyms ("AR" is a member of...):
Confederacy; Confederate States; Confederate States of America; Dixie; Dixieland; South (the southern states that seceded from the United States in 1861)
Sense 2
Meaning:
A unit of surface area equal to 100 square meters
Synonyms:
ar; are
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("ar" is a kind of...):
area unit; square measure (a system of units used to measure areas)
Holonyms ("ar" is a part of...):
hectare ((abbreviated 'ha') a unit of surface area equal to 100 ares (or 10,000 square meters))
Sense 3
Meaning:
A colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
Synonyms:
Ar; argon; atomic number 18
Classified under:
Hypernyms ("Ar" is a kind of...):
chemical element; element (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)
argonon; inert gas; noble gas (any of the chemically inert gaseous elements of the helium group in the periodic table)
Holonyms ("Ar" is a substance of...):
air (a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of)
Context examples:
By inhibiting the formation of the complex between androgen activated AR- and the AP1 transcription factor JunD, the expression of androgen-responsive genes are blocked.
(Androgen Antagonist APC-100, NCI Thesaurus)
Androstane steroid HE3235 appears to bind the androgen receptor (AR), down-regulating anti-apoptotic genes, such as Bcl-2, while increasing the expression of pro-apoptotic genes, such as caspases.
(Androstane Steroid HE3235, NCI Thesaurus)
ARN-509 binds to AR in target tissues thereby preventing androgen-induced receptor activation and facilitating the formation of inactive complexes that cannot be translocated to the nucleus.
(Androgen Receptor Antagonist ARN-509, NCI Thesaurus)
AR is overexpressed in certain breast and prostate cancers and is involved in tumor cell proliferation and survival.
(Androgen Receptor Antisense Oligonucleotide EZN-4176, NCI Thesaurus)
Both flares erupted from an active region labeled AR 2673, which also produced a mid-level solar flare on Sept. 4, 2017.
(Two Significant Solar Flares Imaged by NASA's SDO, NASA)
Androgen receptor (919 aa, ~99 kDa) is encoded by the human AR gene.
(Androgen Receptor, NCI Thesaurus)
Cyproterone, in its acetate form, binds the androgen receptor (AR), thereby preventing androgen-induced receptor activation and inhibiting the growth of testosterone-sensitive tumor cells.
(Cyproterone, NCI Thesaurus)
Oh de-ar no, sir!
(David Copperfield, by Charles Dickens)
Devoid of any COX inhibiting activity, PDK1 inhibitor AR-12 binds to and inhibits the phosphorylation of 3-phosphoinositide-dependent kinase-1 (PDK-1).; subsequently, the phosphorylation and activation of the serine/threonine protein kinase Akt (protein kinase B or PKB) is inhibited, which may result in inhibition of the PI3K/Akt signaling pathway, inhibition of tumor cell proliferation, and the induction of tumor cell apoptosis.
(PDK1 Inhibitor AR-12, NCI Thesaurus)
Also called AR+.
(Androgen receptor positive, NCI Dictionary)
