Solutions Nitrous oxide has 9 entries with similar clues
- caoChemical formula for calcium oxide
- rubyGemstone comprising mainly aluminium oxide
- rustyCovered with a layer of iron oxide
- oxidenitrous ...... (laughing gas)
- silicaOxide occurring as quartz used in making glass
- calamineSoothing lotion of zinc carbonate and ferric oxide
- quicklimeCalcium oxide
- burnt-siennaIron oxide pigment
- jewellers-rougeFinely ground ferric oxide used as polish for metal and optical glass