Exact Match:
- ether
- a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
- a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
- any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
Synonyms:
- Caelus,
- Dry Ice,
- Freon,
- Olympian heights,
- Pentothal,
- acme,
- aerial heights,
- air,
- airy nothing,
- ammonia,
- apex,
- azure,
- blue sky,
- bubble,
- caelum,
- canopy,
- canopy of heaven,
- carbon dioxide,
- cerulean,
- chaff,
- chip,
- chloroform,
- cobweb,
- cocaine,
- coolant,
- cope,
- cork,
- dizzy heights,
- down,
- dust,
- elevation,
- eminence,
- empyrean,
- ethyl chloride,
- ethylene,
- fairy,
- feather,
- firmament,
- flue,
- fluff,
- foam,
- freezing mixture,
- froth,
- fuzz,
- gas,
- gossamer,
- heaven,
- heavens,
- height,
- heights,
- hyaline,
- ice,
- ice cubes,
- illusion,
- lift,
- lifts,
- liquid air,
- liquid helium,
- liquid oxygen,
- menthol,
- mist,
- mote,
- nitrous oxide,
- ozone,
- phantom,
- raise,
- refrigerant,
- rise,
- rising ground,
- shadow,
- sky,
- smoke,
- spirit,
- sponge,
- spume,
- starry heaven,
- steep,
- stratosphere,
- straw,
- the blue,
- the blue serene,
- thin air,
- thistledown,
- uprise,
- vantage ground,
- vantage point,
- vapor,
- vault,
- vault of heaven,
- welkin,
- zenith