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Anfangsbuchstabe A
a
A
A band
a-
a.c.
AAS
abdomen
Abelian group
aberration
abiotic factor
ABO system
abortion
ABS
abscissa
absolute
absolute alcohol
absolute configuration
absolute expansivity
absolute humidity
absolute temperature
absolute value
absolute zero
absorbed dose
absorption
absorption coefficient
absorption edge
absorption spectroscopy
Ac
acceleration
acceleration of free fall (acceleration due to gravity)
accelerator (particle accelerator)
accelerometer
acceptor
accessory pigment
accommodation
accretion disk
accumulator
accuracy
acetal
acetaldehyde
acetamide
acetate
acetic acid
acetic anhydride
acetoacetic ester
acetoacetic ester
acetone
acetophenone
acetyl chloride
acetyl coenzyme A (acetyl CoA)
acetylating agent
acetylation
acetylcholine
acetylene
acetylsalicylic acid
achromatic lens
acid
acid amide
acid anhydride
acid dissociation constant
acid dye
acid halide
acid ionization constant (acid dissociation constant)
acid rain
acid salt
acid-base indicator
acidic
acidification
aclinic line
acoustic wave
acoustics
acoustoelectronics
acquired characteristic
acquired immune deficiency syndrome
acrosome
acrylamide (polyacrylamide)
acrylic
acrylonitrile
ACTH
actin
actinide (actinoid)
actinium
actinoid
action (action integral)
action potential
action spectrum
activated charcoal
activated complex
activation energy
active component
active mass
active site
active transport
activity
activity series
acute angle
acyclic
acyclovir
acyl fission
acyl halide (acid halide)
acylation
Ada
adamantane
adaptation
adatom
ADC
addition
addition compound
addition formulae
addition polymer
addition reaction
additive primaries
address
adduct (addition compound)
adenine
adenosine
adenosine diphosphate
adenosine monophosphate
adenosine triphosphate
adenovirus
ADH
adiabatic
adiabatic demagnetization
adipic acid
adipose tissue
admittance
ADP
adrenal cortex
adrenal glands
adrenal medulla
adrenaline (US epinephrine)
adrenocorticotrophic hormone (ACTH)
adsorption
advection
ψ particle
aerial (antenna)
aerobic respiration
aerodynamics
aerofoil (US airfoil)
aerosol
AES
aestivation
aether
AFM
Ag
agar
agarose
Agrobacterium tumifaciens
AIDS (acquired immune deficiency syndrome)
air
airfoil
Airy rings
Al
Al
Ala
alabaster
alanine (Ala)
albedo
albinism
albumin (serum albumin)
alcohol
aldehyde
aldohexose
aldol condensation
aldose
algae (singular alga)
algebra
algebraic number
Algol
algorithm
alicyclic
aliphatic
aliquot
alizarin
alkadiene
alkali
alkali metal
alkaline
alkaline earth metal
alkaloid
alkanal
alkane (paraffin)
alkanol
alkene (olefin)
alkoxide
alkyd resin
alkyl group
alkyl halide
alkyl radical
alkylarene
alkylation
alkyne (acetylene)
allele
allene
allergy
allograft
allopatric
allosteric enzyme
allotropy
alloy
allyl alcohol (prop-2-en-1-ol)
Alnico
alpha
alpha decay
alpha particle
alpha radiation
alpha-iron
alternating current (a.c.)
alternation of generations
alternator
altimeter
altitude
altruism
ALU
alum
alumina
aluminate
aluminium (US aluminum)
aluminosilicate
aluminum
alveolus (plural alveoli)
AM
Am
amalgam
ambident nucleophile
americium
Ames test
amide
amine
amino acid
ammeter
ammine complex
ammonia
ammonia clock
ammonia-soda process
ammoniacal
ammonium hydroxide
ammonium salts
amniocentesis
amoeboid
amorphous
amount of substance
AMP
Ampère's (circuital) theorem
ampere
ampere-hour
amphibian
amphibole
amphiprotic
amphoteric
amplifier
amplitude
amplitude modulation (AM)
amu
amyl group
amylase
amylopectin
amylose
anabolic steroid
anabolism
anaemia (anemia)
anaerobic respiration
Analar reagent
analgesic
analogue (US analog)
analogue computer
analogue-to-digital converter (ADC)
analysis
analyte
analytic function
anaphase
anaphylaxis
anastigmatic lens
anatomy
AND
androgen
anemometer
aneroid barometer
Angiospermophyta
angle
angstrom
angular acceleration
angular displacement
angular distance
angular frequency
angular momentum
angular momentum quantum number
angular velocity
anharmonic
anhydride
anhydrite
anhydrous
aniline
animal
anion
anisotropic
annealing
annelid
annihilation
annual variation
annular eclipse
annulene
annulus
anode
anodizing
anomaly
ANS
ANSI
antagonistic
antenna
anterior
anther
anthocyanin
Anthophyta
anthracene
anthraquinone
anthrax
antibiotic
antibody
antibonding orbital
anticodon
anticyclone
antidiuretic hormone (ADH)
antiferromagnetism
antifluorite structure
antifreeze
antigen
antihistamine
antiknock agent
antilogarithm
antimony
antinode
antioxidant
antiparallel vectors
antiparticle
antipyretic
antiquark
antisense gene
antiserum
antiviral
apatite
aperture
aperture synthesis
aphelion
apical dominance
aplanatic
apoenzyme
apogee
apparent depth
apparent expansivity
apparent power
apparent solar time
Appleton layer (F layer)
application
aprotic
aq
aqua complex (aquo complex)
aqua regia
Aquadag
aquamarine
aqueous
aquo complex
Ar
Ar
arachnid
aragonite
aramid fibre
arc
arc length
arc second
Archaean
Archimedes' principle
area
arene
Arg
Argand diagram
arginine (Arg)
argon
argument
arithmetic and logic unit (ALU)
arithmetic mean
arithmetic progression
armature
aromatic
aromaticity
array
Arrhenius equation
arsenic
arsine
artery
arthropod
artificial intelligence (AI)
aryl group
As
asbestos
ASCII
ascorbic acid
asexual reproduction
Asn
Asp
asparagine (Asn)
aspartic acid (Asp)
aspect ratio
aspirin (acetylsalicylic acid)
assembler
assembly language
assimilation
association
associative
astatine
asteroid (minor planet)
asthma
astigmatism
astrometric binary
astrometry
astronomical telescope
astronomical unit
astronomy
astrophysics
Asx
asymmetric
asymmetric carbon atom
asymptote
asymptotic freedom
At
atactic polymer
athermanous
atherosclerosis
atm
atmosphere
atmospheric pressure
atmospherics
atom
atomic absorption spectroscopy (AAS)
atomic bomb
atomic clock
atomic emission spectroscopy
atomic energy
atomic force microscope (AFM)
atomic mass unit
atomic number (proton number)
atomic orbital
atomic physics
atomic radius
atomic spectroscopy
atomic theory
atomic volume
atomic weight
atomicity
ATP
atrium (plural atria)
atropine
attenuated
attenuation
atto-
Au
AU
audiofrequency
aufbau principle (building-up principle)
Auger effect
auric
aurora
aurous
austenite
autocatalysis
autoclave
autoimmune diseases
autoionization
autonomic nervous system
autosome
autotroph
auxin (indole-acetic acid, IAA)
auxochrome
avalanche
avalanche breakdown
average
Aves
Avogadro constant (Avogadro's number)
Avogadro's principle
avoirdupois
axenic culture
axial vector (pseudovector)
axil
axiom
axis (plural axes)
axis of revolution
axis of rotation
axis of symmetry
axon
azeotrope (constant boiling mixture)
azide
azimuth (azimuthal angle)
azimuthal quantum number
azo compound
azo coupling
azo dyes
AZT (azidodideoxythymidine, zidovudine)
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