Background for aa

aa

/ˈɑː.ɑː/ /ˈɑ.ɑ/

Illustration aa - Image 1

noun

A form of lava flow associated with Hawaiian-type volcanoes, consisting of basaltic rock, usually dark-colored with a jagged and loose, clinkery surface. Compare pahoehoe.

Examples :

"Walking across the aa was difficult because its sharp, broken surface made every step painful. "

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noun

Initialism of acting age.

Examples :

"The casting director asked for the actress's resume, specifically noting her aa was sixteen, even though she was actually twenty-one. "

entertainment age stage

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noun

Initialism of alveolar-arterial.

Examples :

"The doctor ordered a blood gas test to calculate the patient's AA gradient and assess their lung function. "

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noun

Initialism of approximate absolute.

Examples :

"The accountant estimated the building's value at $500,000, but added that this was an aa, subject to a professional appraisal. "

technical science math

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noun

Initialism of armature accelerator.

Examples :

"The robotics team is working on improving the robot's speed by optimizing the AA during the motor calibration process. "

technology physics electronics machine

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noun

Initialism of ascending aorta.

Examples :

"The cardiologist pointed to the diagram, explaining that the AA carries blood directly from the heart. "

medicine anatomy organ body

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noun

Initialism of atomic absorption.

Examples :

"The lab technician used AA to determine the lead concentration in the water sample. "

chemistry science technical

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noun

Initialism of author's alteration.

Examples :

""The editor flagged several instances of 'AA' in the manuscript, asking the author to clarify the changes made after the initial submission." "

writing grammar literature communication

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noun

Initialism of average audience.

Examples :

"The TV network increased its advertising rates after achieving a higher AA than expected in the target demographic. "

media entertainment business

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adjective

Initialism of arctic-alpine.

Examples :

"The students researched the aa plant communities in their environmental science class. "

environment nature biology

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adjective

Initialism of always afloat.

Examples :

"The Coast Guard requires that all vessels contracted for emergency response be aa and ready for immediate deployment. "

nautical sailing

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noun

A clear colourless organic acid, CH3COOH, formed by the oxidation of ethanol; it is used as a solvent and has very many industrial applications; it is the major acidic component of vinegar.

Examples :

"To clean the coffee maker, she mixed aa with water. "

substance chemistry biochemistry food industry

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noun

Any organic compound containing both an amino and a carboxylic acid functional group.

Examples :

"Proteins are complex aas that are essential for building and repairing tissues in the body. "

biochemistry compound chemistry biology substance science

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noun

Any of the twenty naturally occurring α-amino acids (having the amino, and carboxylic acid groups on the same carbon atom), and a variety of side chains, that combine, via peptide bonds, to form proteins.

Examples :

"Nutritionists emphasize the importance of a balanced diet to ensure we get all the essential aa our bodies need to build and repair tissues. "

biochemistry biology chemistry physiology substance structure medicine science organism

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noun

1-amino-2-propanone, a secondary amino ketone

Examples :

"Example Sentence: "In the chemistry lab, the researcher carefully synthesized aa (1-amino-2-propanone) as a key intermediate for the synthesis of a novel drug." "

compound chemistry biochemistry

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noun

A long-chain polyunsaturated fatty acid, having 20 carbon atoms and four double bonds, found in animal fats; it is essential for human nutrition, being a precursor to the production of prostaglandins.

Examples :

"To maintain good health, it's important to include sources of AA in your diet, as it helps the body make substances important for regulating inflammation. "

biochemistry physiology medicine substance chemistry food biology science body

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adjective

Abbreviation of ana.

Examples :

"To ensure the pharmacist correctly dispenses equal parts of each ingredient, the prescription reads "Ingredient A 50mg, aa Ingredient B." "