Erayada ka bilowda xarafka -A- ee Walax-ogaalka (physics)
- Aberation, chromatic: Haydh-midabeed
- Aberation, spherical: Haydh-kubbadeed
- Absolute: Sugan
- Absolute expansion: Fidid sugan
- Absolute humidity: Suyuc sugan
- Absolute magnitude: Laxaad sugan
- Absolute permitivity: Samaxaad sugan
- Absolute temperature: Heerkul sugan
- Absolute unit: Halbeeg sugan
- Absolute zero: Eber sugan
- Absorptance: Nuugitaannimo
- Absorption: Nuugid
- Absorption bands: Liidad nuugideed
- Absorption, Chemical: Nuugid kiimikaad
- Absorption coefficient: Weheliye nuugid
- Absorption, Physical: Nuugid fiisikaad/duleed
- Absorption of radiation: Kaah nuugid
- Absorption spectrum: Jeegaan nuugid
- Absorptivity: Nuugitaan
- Abundance: Helitaan
- Abundance, Chemical: Helitaan Kiimikaad
- Abundance, Cosmic: Helitaan cireed
- Abundance, Natural: Helitaan dabiiciyeed
- Acceleration: Karaar
- Acceleration due to gravity: Karaar cufisjiidad
- Acceleration, Rectilinear: Karaar xariiqtoos
- Acceleration, Curvilinear: Karaar xariiqxood
- Accelerator: Karaaarshe
- Acceptor: Guddoome
- Acceptor level: Heer guddoome
- Accommodation: Arag-qumin
- Accumulator: Ururiye
- Achromatic colors: Midabyo-haydh
- Achromatic fringes: Hariiro-haydh
- Aclinic line: Birlab-badhe
- Acoustics: Cilmi jabaqeed
- Acoustic bridge: Kaabad jabaqeed
- Acoustic capacitor: Madhxiye jabaqeed
- Acoustic Absorption: Nuugid jabaqeed
- Acoustic filter: Kala-reebe jabaqeed
- Acoustic grating: Shuqduud jabaqeed
- Action: Fal
- Activation: Kicin
- Activator: Kiciye
- Active component: Xubin kacsan
- Active current: Qulqul kacsan
- Adaptive vision: Arag-qabatin
- Adiabatic process: Hab kul-xidh
- Adiabatic change: Isbeddel kul-xidh
- Adhesion: Qalaadisjiidad
- Adhesive force: Xoog qalaadisjiidad
- Admittance: Oggolaansho
- Advantage: Faa’ido/waxtar
- Aerial: Eeriyal
- Aerial array: Teed eeriyal
- Aerial impedance: Xayir eeriyal
- Aerial loop: Qool eeriyal
- Aerial noise: Buuq eeriyal
- Aerial wave: Hir eeriyal
- Aerofoil: Eeroofayal
- Aeronautics: Cilmi duulimaad
- Aerometer: Hawobeeg
- Aerodynamic: Eerodhaynaamik
- After-glow: Hadhaa iftiin
- After-heat: Hadhaa kul
- After-image: Hadhaa hummaag
- Air: Hawo
- Air capacitor: Madhxiye hawo
- Air condition: Hawo qaboojiye
- Air-core transformer: Dooriye hawo-dhuux
- Aircraft: Dayuurad
- Air glow: Iftiin hawo
- Airship: Markab hawo
- Airspeed: Xawaare hawo
- Algorithm: Algoridam
- Allobar: Aloobaar
- Allotropy: Alotarobi
- Alloy: Birdhaf
- Alpha: Alfa
- Alpha decay: Mataataxa Alfa
- Alpha particle: Saxarka Alfa
- Alpha rays: Falaadhaha Alfa
- Alpha ray spectrum: Jeegaanta falaadhaha Alfa
- Alternating current (A.C.): Qulqul talantaaliya (Q.T.)
- Alternating current bridge: Kaabad Q.T.
- A.C. motor: Mator/dhaqaajiye Q.T.
- Altimeter: Joogbeege
- Altitude: Joog
- Amalgam: Heerdhaf
- Amalgamation: Heerdhafayn
- Amber: Amber
- Ambient: Weegaar
- Ammeter: Ambiyeer-beege
- Amorphous: Wiriq-laawe
- Ampere (Unit): Ambiyeer (halbeeg)
- Ampere balance: Miisaan ambiyeel
- Ampere law: Xeerka ambiyeer
- Ampere turn: Duub ambiyeer
- Amplification: Kordhin
- Amplification factor: Saami kordhineed
- Amplifier: Kordhiye
- Amplitude: Qoton
- Amplitude modulation: Habrid qoton
- Amplitude splitting: Jeebis qoton
- Atomic Mass Unit (A.M.U): Halbeeg Cuf Atameed (H.C.A)
- Analyzer: Saafe
- Anemometer: Anemoomitir (Xawaare-hawo-beeg)
- Aneroid: Hoorlaawe (Aneroydh)
- Angle: Xagal
- Angle of friction: Xagal islis
- Angle of incidence: Xagal-abbaar
- Angle of reflection: Xagal noqod
- Angstrom A: Angistaroom A
- Angular: Xagleed
- Angular acceleration: Karaaar xagleed
- Angular displacement: Barabax xagleed
- Angular frequency: Rakaad xagleed
- Angular impulse: Gujo xagleed
- Angular momentum: Daafad xagleed
- Angular velocity: Kaynaan xagleed
- Anisotropy: Anistaroobi
- Annihilation: Liqid
- Annihilation radiation: Kaah liqid
- Anion: Ayoontabane
- Anode: Qotintogane
- Anode characteristic: Astaan qotintogane
- Anode drop: Dhicid qotintogane
- Anode load: Rar qotintogane
- Anode modulation: Habrid qotintogane
- Anode rays: Falaadho qotintogane
- Anode saturation: Dheregsanaan qotintogane
- Anomalous: Sirgacan
- Anomalous behavior of water: Asawga sirgacan ee biyaha
- Antenna: Anteena
- Anticathode: Lid-qotintabane
- Antiferromagnetism: Lid-xadiidbirlabnimo
- Antimatter: Lid-maatar
- Antiparticle: Lid-saxar
- Antiresonance: Lid-iskudubadhac
- Aperture: Dalool
- Aperture angle: Xagal dalool
- Aperture distortion: Qaablun
- Apex: Fig
- Apparent: Muuqda
- Apparent Expansion: Fidid muuqata
- Apparent Depth: Qoto muuqata
- Apparent magnitude: Laxaad muuqda
- Arc-lamp: Laambad-qaanso
- Armature: Xurbiye
- Artificial: Gacmeed
- Array: Teed
- Asteroid: Meere-yare
- Astigmatism: Kulmis-seeg
- Astigmatic lens: Bikaac kulmis-seeg
- Astigmatic defect: Lid kulmis-seeg
- Astronomy: Cilmi falag
- Atmometer: Uumiyow beege
- Atmosphere: Gibil
- Atmospheric circulation: Wareeg gibileed
- Atmospheric convection: Islabarogod gibileed
- Atmospheric electricity: Danab gibileed
- Atmospheric pollution: Ajow gibileed
- Atmospheric pressure: Cadaadis gibileed
- Atmospheric radio: Raadiyoo-gibileed
- Atom: Atam
- Atomic bomb: Qunbulad atameed
- Atomic energy: Tamar atameed, bu’eed
- Atomic heat: Kul atameed
- Atomic number: Tiro atameed, bu’eed
- Atomic orbital: Meeris atameed
- Atomic physics: Fiisikis atameed
- Atomic radius: Gacan atameed
- Atomic volume: Mug atameed
- Atomic weight: Culays atameed
- Atomisation: Atamayn
- Attenuation: Dhimid
- Attenuation coefficient: Weheliye dhimid
- Audiometer: Maqal beege
- Audiofrequency: Rakaad-maqal
- Audio signal: Sinyaale maqal
- Aurora: Awroora
- Automatic: Iswada
- Avogadro constant: Madoorsoomaha Afagaadro
- Axial: Dhidibeed
- Axial Ratio: Saami dhidibeed
- Axis: Dhidib
- Azimuth: Kug
- Azimuthal: Kugeed
- Azimuthal quantum number: Tiro kuwaantam kugeed