| Subject | French | English |
| comp., MS | disque Blu-ray | Blu-ray Disc (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. | détecteur de défauts par gamma-rays | gamma-ray flaw detector |
| met. | passage anomale de X-rays | anomalous X-ray transmission |
| anim.husb. | pâturage de ray-grass | ryegrass |
| anim.husb. | pâturage de ray-grass | rye grass pasture |
| life.sc., agric. | ray-grass | ryegrass |
| nat.res., agric. | ray-grass | rye grass |
| agric. | ray-grass | rye-grass |
| agric. | ray-grass anglais | perennial ryegrass (Lolium perenne L) |
| agric. | ray-grass anglais | English ryegrass (Lolium perenne) |
| bot. | ray-grass anglais Lolium perenne | perennial ryegrass |
| nat.res., agric. | ray-grass anglais | English rye-grass (Lolium perenne Lin., Lolium perenne) |
| bot. | ray-grass anglais Lolium perenne | English ryegrass |
| agric. | ray-grass d'Italie | Italian ryegrass (Lolium multiflorum Lam) |
| bot. | ray-grass d'Italie Lolium italicum A.Br., Lolium multiflorum | Italian ryegrass |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | fromental |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | tall cat |
| agric. | ray-grass français | oat-grass (Arrhenatherum elatitus, Avena elatior) |
| nat.sc., agric. | ray-grass français | false oat (Arrhenatherum elatius) |
| nat.sc., agric. | ray-grass français | tall oatgrass (Arrhenatherum elatius) |
| nat.sc., agric. | ray-grass français | French ryegrass (Arrhenatherum elatius) |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | false oat-grass |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | French ryegrass |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | tall oat grass |
| bot. | ray-grass français Arrhenaterum elatius, Avena elatior | tall meadow oat grass |
| agric. | ray-grass hybride | hybrid ryegrass (Lolium hybridum Hausskn) |
| bot. | ray-grass hybride Lolium X hybridum | hybrid ryegrass |
| bot. | ray-grass vivace Lolium perenne | perennial ryegrass |
| bot. | ray-grass vivace Lolium perenne | English ryegrass |
| agric. | ray-grass Westerwold | Westerwold ryegrass (Lolium multiflorum Lam) |
| welf. | X-rays | X-rays |
| med. | épreuve de Harris et Ray | Harris and Ray test |