A

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A

 

A

 
absorbance, activity (radioactivity), area, mass number.

ā

 (L.)
an´te (before).

α

 
alpha, the first letter of the Greek alphabet, often used to indicate the first member of a series, such as the α chain of hemoglobin. See also terms beginning alpha.

A

1. Abbreviation for ampere; adenine; alanine; alanyl.
2. As a subscript, refers to alveolar gas.
3. Symbol (usually capitalized italic, A) for absorbance.
4. Symbol for adenosine or adenylic acid in polynucleotides; alanine or alanyl in polypeptides.
5. First substrate in a multisubstrate enzyme-catalyzed reaction.

A


a

1. Abbreviation for total acidity; ante; area; asymmetric; auris; artery; arteria [TA].
2. Symbol for atto-.
3. As a subscript, refers to systemic arterial blood.

a

A

accommodation; adenine or adenosine; alanine; ampere; anode; anterior.

A

/A / absorbance; activity (3); area; mass number.

Å

angstrom.

a

accommodation; atto-.

a

/a / activity (2).

A

abbr.
1. adenine
2. ampere
3. or Å angstrom
4. area

A/D

1 abbreviation for analog-to-digital. See analog-to-digital converter.
2 abbreviation for anodal duration.
3 abbreviation for average deviation.

A, α

See alpha.

a

Abbreviation for:
absorptivity
acceleration
chemical activity
arterial blood gas
atto-

A

Abbreviation for:
abnormal
absorbance
accessory
acetum
actin
Actinomyces
adenine
adenosine
admittance Electricity
adrenaline
adriamycin
agar
akinetic
alanine
albino guinea pig
alcohol
allele
allergist
allergy
alternating current
alveolar gas
ampere
amphetamine
anaphylaxis
Angstrom
animal
anion
annealing
anterior
antigen
antinuclear antibody (ANA is more commonly used)
aqueous
area
arterial
arteriolar
asbestos
asparagine
atrial
atrium
assist
atropine
auricular
auris (ear)
axis
a regional street term for LSD ONDCP
mass number
radioactivity

A

Symbol for:
1. Actin.
2. Adenine.
3. Adrenaline.
4. Adriamycin.
5. Alanine.
6. Ampere.
7. Amphetamine.
8. Anaphylaxis.
9. Angstrom.
10. Anion.
11. Anterior.
12. Aqueous.
13. Area.
14. Asparagine.
15. Atrium.
16. Auricular.
17. Axis.

a

Symbol for:
1. Absorptivity.
2. Acceleration.
3. Chemical activity.
4. Arterial blood gas.
5. atto-.

°A

Abbreviation for degree absolute; replaced by K (kelvin).

A

Abbreviation for alveolar ventilation

A

Abbreviation for absolute; adenine; alanine; ampere.

A

Abbreviation for Helmholtz energy.

a

Abbreviation for absorptivity.

a

Abbreviation for specific absorption coefficient.

A

abbrev.
  1. ABSORBANCE.
  2. the nitrogenous base ADENINE in NUCLEIC ACIDS.
  3. ALANINE.
  4. ANGSTROM.

Å

abbrev. ANGSTROM.

A,

adj See alveolar.

a,

adj See arterial.

A

Abbreviation for alanine; ampere.

Ā

Abbreviation for anion.

A

accommodation; adenine; ampere; anode (anodal); anterior; axial; mass number.

Å

angstrom.
References in periodicals archive ?
The intact A-ring lactone modulates both inactivation activity and mean open time in single-channel patch-clamp experiments (Jeglitsch et al.
In common with other known AR antagonists, fenitrothion and its organophosphorus-like AR antagonist analogues all contain the essential A-ring phenyl feature with a putative strong H-bond interaction site.
Various flavonoids possessing isopentenyl side chains in the A-ring have been prepared and evaluated for their ability to bind estrogen receptor.
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.