oxygen gas
Chemistry
noun
Oxygen in the gaseous state.
Origin
Late 18th century.
- pig dog
- pigdom
- pigeon
- pigeon-berry
- pigeon-berry ash
- pigeon blood
- pigeon breast
- pigeon-breasted
- pigeon cherry
- pigeon chest
- pigeon diver
- pigeon drop
- pigeon dropper
- pigeon dropping
- pigeoneer
- pigeon egg
- pigeon express
- pigeon fancier
- pigeon-fancying
- pigeon flyer
- pigeon flying
- pigeon-foot
- pigeongram
- pigeon grass
- pigeon guillemot