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  • noun

Synonyms for A

a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron)

any of several fat-soluble vitamins essential for normal vision

one of the four nucleotides used in building DNA

(biochemistry) purine base found in DNA and RNA

the basic unit of electric current adopted under the Systeme International d'Unites

the blood group whose red cells carry the A antigen

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The A-Ring Road Development Project also includes increasing the number of parking bays, installing streetlighting, constructing pedestrian and cycle lanes, providing road signs and pedestrian crossings to enhance road safety, and landscaping, he noted.
The calculated Kb values by ACE in actual environment indicated that gallic acid and six flavonoid compounds had relative strong affinity with thrombin, and the affinity was positively correlated with the number of OH groups in A-ring specially.
The 7-OH of A-ring and 3-OH of C- ring of flavonoids are important for the antiplatelet activity.
The neutral loss of CO2 occurred only when A-ring possesses two hydroxyl groups, so M1 was identified as 8-O- methylemodin.
Saxifragales is the order that presents the largest index of A-ring transformation.
Previous A-ring observations by spacecraft only found evidence of water-ice particles up to 20 meters across and two much larger, icy moonlets: 30-km-wide Pan and 7-km-wide Daphnis (SN: 11/19/05, p.
This may indicate that the EDCs containing phenol groups, that is, DES and BPA, mimic the effects of 17[beta]-[E.sub.2], which also contains a phenolic A-ring in its structure, by binding at the same membrane-binding site.
He believes that if the airliner had not hit the light poles, it would have slammed into the Pentagon's 9th and 10th corridor A-ring, and the loss of life would have been greater.
Walking around the Pentagon, I saw the pools of water in the sixth corridor A-ring. We had heard that all the Army Chemical Corps personnel in the building were healthy and accounted for; however, the Headquarters' Army staff personnel were unable to return to their office.
Members of the British Astronomical Association, for example, have observed the A-ring [5] and the B-ring [6-7] get brighter as Saturn reached opposition which is the Seeliger effect.
"If they're playing ring, a-ring, a-roses, the other children won't hold her stump, they'll grasp her sleeve instead but they're happy to hold the silicone hand."
The diversion aims to enable expansion and upgrading works on Al-Diwan Intersection and installation of new traffic lights as part of the A-Ring Road Development Project which will contribute to enhancing traffic movement and reducing congestion in the areas surrounding the A-Ring Road.