Discover the fascinating world of science with this comprehensive list of over 100 words that begin with the letter “A.” From astronomy to anatomy, immerse yourself in the diverse realms of astrophysics, biochemistry, and beyond. Unearth the wonders of the scientific alphabet and expand your vocabulary on this exciting journey!
Science Words That Start With A
Here is the list of common science words with A;
- Atom
- Anatomy
- Astrology
- Astrophysics
- Aerodynamics
- Antibody
- Archaeology
- Amino acid
- Acid rain
- Algorithm
- Algae
- Anthropology
- Amplification
- Antigen
- Astronomy
- Amplitude
- Allele
- Avian
- Antibiotic
- Acceleration
- Adaptation
- Artificial intelligence
- Aquatic
- Aerobic
- Axis
- Acidification
- Astronaut
- Accelerometer
- Analytical
- Angular velocity
- Antioxidant
- Autotroph
- Atrophy
- Alveoli
- Asthma
- Atomic mass
- Apoptosis
- Assimilation
- Anion
- Agar
- Amoeba
- Avogadro’s number
- Antimatter
- Atomic structure
- Archaea
- Anemia
- Arthropod
- Anomaly
- Alveolar
- Acidity
- Amino group
- Acid-base
- Actin
- Archeology
- Adhesion
- Acetylcholine
- Antibiotic resistance
- Allelic frequency
- Asymmetry
- Alkalinity
- Atomic nucleus
- Astrobiology
- Aneurysm
- Atherosclerosis
- Atomic force microscope
- Archeological site
- Anode
- Alkaloid
- Aseptic technique
- Angiosperm
- Aerobe
- Axon
- Archaeological excavation
- Amorphous
- Albedo
- Aerobiology
- Asteroid
- Anemometer
- Alkali metals
- Anaerobic
- Anaphase
- Acid-base balance
- Avian influenza
- Alpha particle
- Amplitude modulation
- Astrogeology
- Air pollution
- Archeological dating
- Analytical Chemistry
- Algal bloom
- Atomic emission spectroscopy
- Anaerobic respiration
- Acclimation
- Antifreeze
- Anoxic
- Archaeobotany
Related: Science Words A to Z
Explore More Science Words:
A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z
Science Words With A (By Grade)
4th Grade Science Words With A:
- Adaptation
- Amphibian
- Antenna
- Axis
- Atmosphere
- Atom
- Aquatic
- Abdomen
- Absorb
- Algae
- Air pressure
- Allergy
- Altitude
- Anemometer
- Angiosperm
- Antler
- Apex
- Arachnid
- Arthropod
- Asteroid
5th Grade Science Words With A:
- Acceleration
- Accumulation
- Acid rain
- Asexual reproduction
- Astronomy
- Autotroph
- Aerosol
- Air mass
- Alloy
- Amplitude
- Analog
- Anatomy
- Ancestor
- Andesite
- Anther
- Antibiotic
- Aquifer
- Arid
- Aroma
- Asymmetry
6th Grade Science Words With A:
- Absorption
- Accelerometer
- Acclimatization
- Achromatic
- Acidity
- Acoustics
- Activation energy
- Adaptability
- Adhesion
- Aerodynamics
- Aflatoxin
- Agar
- Aggregate
- Albedo
- Alkali
- Allele
- Altimeter
- Amino acid
- Amphibious
- Anaerobic
7th Grade Science Words With A:
- Aerobic
- Affinity
- Agglomeration
- Allelopathy
- Altimetry
- Amalgam
- Ambient
- Ameba
- Anabolism
- Analgesic
- Angstrom
- Anhydrous
- Anion
- Antigen
- Apartheid
- Aphelion
- Apogee
- Arable
- Arcane
- Archaeology
8th Grade Science Words With A:
- Anthropogenic
- Anticyclone
- Antineutrino
- Aperiodic
- Aqueous
- Aquaculture
- Arboreal
- Arc welding
- Asterism
- Asthenosphere
- Astrophysics
- Asynchronous
- Atoll
- Atomic number
- Atrium
- Attenuation
- Audit
- Aurora
- Autoclave
- Avulsion
Science Words Starting With A (By Subject)
Physics Words That Start With A:
- Absolute zero
- Acceleration
- Acoustics
- Amperage
- Ampere
- Amplitude
- Angstrom
- Annihilation
- Anode
- Antimatter
- Aphelion
- Apogee
- Arc
- Astigmatism
- Asymptote
- Atmospheric pressure
- Atom
- Atomic mass
- Attenuation
- Axis
Chemistry Words That Start With A:
- Absolute temperature
- Accuracy
- Acid
- Activation energy
- Activity series
- Additive
- Adsorption
- Aldehyde
- Alkali metal
- Alkaline
- Alloy
- Amalgam
- Amino acid
- Analyte
- Anhydride
- Anion
- Arrhenius equation
- Azeotrope
- Atomic orbital
- Avogadro’s number
Biology Words That Start With A:
- Abiotic
- Abscission
- Acetylcholine
- Acidophilus
- Actin
- Active site
- Adaptive immunity
- Adenine
- Adipose
- Aerobe
- Agar
- Agonist
- Allele
- Alveoli
- Amino acids
- Amnion
- Anaerobe
- Angiosperm
- Antenna
- Antibody
Math Words That Start With A:
- Absolute value
- Acute angle
- Added
- Algorithm
- Altitude
- Amplitude
- Analysis
- Angle
- Apex
- Approximation
- Arc
- Area
- Arithmetic
- Array
- Asymptote
- Average
- Axis
- Asymmetrical
- Associative property
- Axiom
Physical Science Words With A
- Accelerator
- Actinide
- Adhesive
- Aerogel
- Aeronautics
- Alkane
- Alkene
- Alloy
- Alpha particle
- Alternating current
- Amorphous solid
- Anisotropy
- Annular
- Anode
- Antiparticle
- Aperiodic
- Aqueous solution
- Artificial intelligence
- Asbestos
- Astatine
- Astrophysics
- Atmospherics
- Atomic radius
- Autoignition
- Avogadro’s law
Scientific Words With A
- Abiogenesis
- Abrasion
- Absorbance
- Abundance
- Accelerograph
- Acclimation
- Accretion
- Achondrite
- Acidification
- Acoustic wave
- Actinism
- Actuator
- Adaptation
- Adduction
- Aeronomy
- Affinity chromatography
- Agglutination
- Aggradation
- Agroecology
- Albedo
- Algorithm
- Allelomorph
- Allotropy
- Alpha decay
- Amperometry
Forensic Words with A
- Abduction
- Adjudicate
- Algor mortis
- Allele frequency
- Amicus curiae
- Analysis
- Anatomical pathology
- Ancillary evidence
- Angioscopy
- Anthropometry
- Antemortem
- Anti-tamper
- Appellate
- Archiving
- Arraignment
- Arson
- Articulation
- Asphyxiation
- Assertion
- Assignation
- Association
- Assumption of risk
- Asymptomatic
- Atavism
- Authentication
Science Words with A and Their Meanings:
- Atom: Basic unit of a chemical element.
- Astronomy: Study of celestial objects and the universe.
- Acceleration: Rate of change of velocity.
- Alloy: Mixture of two or more metals.
- Amplitude: Maximum extent of a vibration or oscillation.
- Antibody: Protein that fights against foreign substances.
- Allele: One of two or more alternative forms of a gene.
- Aerodynamics: Study of the motion of air.
- Alkali: Substance forming hydroxide ions in water.
- Anthropology: Study of human societies and cultures.
- Amphibian: Cold-blooded vertebrate animal of a class.
- Algorithm: Process or set of rules for calculations.
- Anatomy: Study of the structure of organisms.
- Astrophysics: Branch of astronomy concerned with the physical nature of stars.
- Acid: Substance with a pH less than 7.
- Aerobic: Requiring free oxygen.
- Asexual: Reproduction without sexual fusion.
- Archaeology: Study of human history through excavation.
- Atmosphere: Layer of gases surrounding a planet.
- Angular Momentum: Momentum of a body in rotational motion.
- Aquifer: Body of permeable rock holding groundwater.
- Adaptation: Process of change by which an organism becomes better suited.
- Albedo: Proportion of light reflected by a surface.
- Agar: Gelatinous substance used for culturing microbes.
- Anemometer: Instrument measuring wind speed.
- Anthracite: Hard coal with high carbon content.
- Antigen: Substance inducing an immune response.
- Apogee: Point in orbit farthest from the earth.
- Aorta: Main artery supplying blood to the body.
- Aurora: Natural light display in Earth’s sky, predominantly seen in high-latitude regions.
