| Subject | English | Finnish |
| med. | abdominal X-ray taken without contrast | vatsan natiiviröntgenkuvaus |
| med. | abdominal X-ray taken without contrast | natiivivatsakuvaus |
| nat.sc. | aggregate ray | valeydin |
| earth.sc. | alpha rays | alfasäteily |
| earth.sc., tech. | analysis by reflection diffraction of x-rays | analyysi heijastuvan röntgendiffraktion avulla |
| life.sc. | anti-crepuscular rays | hämärän säteet |
| econ. | apparatus based on the use of rays | säteiden käyttöön perustuva laite |
| antenn., opt. | axial ray | aksiaalinen säde |
| life.sc., fish.farm. | blonde ray | pilkkurausku (Raja brachyura) |
| comp., MS | Blu-ray Disc | Blu-ray-levy (A high definition optical disc format which uses a smaller focus blue-violet 405 nm laser allowing higher precision and storage density. A competitor to HD DVD) |
| met. | brazing or soldering using a concentrated light ray as heat source | valonsädejuotto |
| fish.farm. | brown ray | peilirausku (Raja miraletus) |
| nat.res. | brown rayed knapweed | ahdekaunokki (Centaurea jacea) |
| fish.farm. | bull ray | juovakotkarausku (Myliobatis bovina, Pteromylaeus bovinus) |
| fish.farm. | butterfly rays | Gymnura-suvun lajit (Gymnura spp.) |
| fish.farm. | butterfly rays | perhosrauskut (Gymnura spp.) |
| fish.farm. | butterfly rays | keihäsrauskut (Dasyatidae) |
| tech., el. | cathode ray oscillograph | katodisädeoskillografi |
| el. | cathode ray screen | katodisädeputkinäyttö |
| patents. | cathode-ray tubes | katodisädeputket |
| health. | continuous X-ray spectrum | jatkuva röntgenspektri |
| earth.sc., life.sc. | corresponding projection rays | homologinen kuvaussäde |
| earth.sc., life.sc. | corresponding rays | homologinen kuvaussäde |
| nat.sc. | cosmic ray | kosminen säteily |
| earth.sc., life.sc. | course of rays | säteen kulku |
| fish.farm. | cuckoo ray | marmorirausku (Raja naevus) |
| life.sc., fish.farm. | cuckoo ray | marmorirausku (Leucoraja naevus, Raja naevus) |
| fish.farm. | dark electric ray | sysisähkörausku (Torpedo nobiliana) |
| fish.farm. | devil rays | paholaisrauskut (Mobulidae) |
| fish.farm. | eagle ray | kotkarausku (Myliobatis aquila) |
| fish.farm. | eagle ray | kotkarausku (Aetobatus narinari, Myliobatidae, Myliobatis acquila, Myliobatis freminvillei, Myliobatis goodei, Myliobatis tenuicandatus, Pteromylaeus bovinus) |
| fish.farm. | eagle rays | kotkarauskut (Myliobatidae) |
| fish.farm. | electric ray | sähkorausku (Narcine brasiliensis, Torpedinidae, Torpedo californica, Torpedo marmorata, Torpedo nobiliana, Torpedo torpedo, torpedo ocellata, torpedo narke) |
| life.sc., fish.farm. | electric ray | sähkörauskut (Torpedinidae) |
| fish.farm. | electric rays | sähkörauskut (Torpedinidae) |
| industr., construct., chem. | energy dispersive analysis by X-rays | röntgendispersioanalyysi |
| earth.sc., life.sc. | epipolar rays | sydänsäde |
| gen. | External interface for processing 3-D holographic and X-ray images for analysis and control | ulkoinen liitäntä kolmeulotteisten hologrammien ja röntgenkuvien käsittelyyn analyysiä ja ohjausta varten |
| nat.sc. | extragalactic cosmic rays | ekstragalaktinen kosminen säteily |
| fish.farm. | eyed electric ray | silmäsähkörausku (Torpedo torpedo) |
| nat.sc., agric. | five-rayed threadfin | rihmaevä-laji (Polynemus quadrifilis) |
| nat.sc., environ. | galactic cosmic rays | galaktinen kosminen säteily |
| earth.sc., life.sc. | gamma-rays | gammasäteily |
| earth.sc., life.sc. | gamma rays | gammasäteily |
| IT | ground-reflected ray | maasta heijastunut säde |
| nat.sc. | heterogeneous ray | heterogeeninen ydinsäde |
| nat.sc. | homogeneous ray | homogeeninen ydinsäde |
| earth.sc., life.sc. | invisible rays | näkymätön säteily |
| industr., construct., chem. | lead X-ray glass | röntgensuojalasi |
| antenn., opt. | leaky ray | vuotosäde |
| antenn., opt. | light ray | valonsäde |
| industr., construct., chem. | low angle X-ray diffraction analysis | pienkulmaröntgendiffraktioanalyysi |
| fish.farm. | manta ray | paholaisrausku (Manta birostris, Manta hamiltoni) |
| life.sc., fish.farm. | marbled electric ray | marmorisähkörausku (Torpedo marmorata) |
| antenn., opt. | meridional ray | meridionaalinen säde |
| fish.farm. | painted ray | palettirausku (Raja microocellata) |
| antenn., opt. | paraxial ray | paraksiaalinen säde |
| earth.sc., life.sc. | pencil of rays | sädeviuhka |
| life.sc., environ. | primary cosmic rays | primäärinen kosminen säteily |
| el. | radio horizon rays | radiohorisonttisäteet |
| life.sc., fish.farm. | Raja rays | rauskut (Raja spp.) |
| el. | 2-ray interference model | kaksisäteinen interferenssimalli |
| antenn., opt. | ray optics | sädeoptiikka |
| antenn., opt. | ray optics | geometrinen optiikka |
| fish.farm. | Ray's bream | merilahna (Brama brama, Brama raii, Brama raji) |
| fish.farm. | Ray's bream | merilahnat (Brama spp.) |
| fish.farm. | ray's bream | merilahna (Brama brama, brama rayi) |
| bot. | Ray's knotgrass | meritatar (Polygonum oxyspermum C. A. Mey. & Bunge; Polygonum acadiense Fernald; Polygonum raii auct.) |
| el. | ray trapping | säteen sieppaus |
| life.sc., environ. | rayed tortoise | sädekilpikonna (Astrochelys radiata, Geochelone radiata, Testudo radiata) |
| el. | rays reflected from layers | kerroksista heijastuneet säteet |
| antenn., opt. | refracted ray in an optical fibre | taittunut säde |
| antenn., opt. | refracted ray method | taittuneen lähikentän menetelmä |
| phys.sc. | roentgen rays | röntgensäteily |
| fish.farm. | rough ray | karhorausku (Raja radula) |
| life.sc., fish.farm. | round ray | pyörörausku (Rajella fyllae, Raja fyllae) |
| phys.sc. | röntgen rays | röntgensäteily |
| life.sc., fish.farm. | sandy ray | hietarausku (Leucoraja circularis, Raja circularis) |
| el. | scanning X-ray topography | röntgensäteilyn skannauksen topografia |
| fish.farm. | shagreen ray | kakirausku (Raja fullonica) |
| life.sc., fish.farm. | shagreen ray | käkirausku (Leucoraja fullonica, Raja chagrinea, Raja fullonica) |
| life.sc., fish.farm. | sharks, rays, skates | leveäsuiset rustokalat (Elasmobranchii) |
| life.sc., fish.farm. | sharks, rays, skates | hait ja rauskut (Elasmobranchii) |
| fish.farm. | skates and rays | rauskukalat (Rajiformes) |
| life.sc., fish.farm. | skates and rays | rauskut (Rajidae) |
| antenn., opt. | skew ray | kiertävä säde |
| fish.farm. | spotted ray | pisterausku (Raja montagui) |
| life.sc., fish.farm. | spotted ray | pisterausku (Raja montagui) |
| life.sc., fish.farm. | starry ray | kynsirausku (Amblyraja radiata, Raja radiata) |
| fish.farm. | torpedo rays | Torpedo-suvun lajit (Torpedo spp.) |
| fish.farm. | torpedo rays | sähkörauskut (Torpedinidae) |
| antenn., opt. | tunnelling ray | vuotosäde |
| life.sc., fish.farm. | undulate ray | aaltorausku (Raja undulata) |
| life.sc., el. | wave rays | aaltosäteet |
| fish.farm. | whip ray | punakeihäsrausku (Dasyatis akajei) |
| med. | X-ray generator | röntgenkone |
| med. | X-ray generator | röntgengeneraattori |
| med. | x-ray of the sella turcica | turkinsatulan röntgenkuvaus |
| med. | x-ray photography | radiografia |
| industr., construct., met. | X-ray shielding glass | röntgenlasi |
| gen. | X-rays | röntgensäteily |