H2O
Dictionary entry overview: What does H2O mean?
• H2O (noun)
The noun H2O has 1 sense:
1. binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
Familiarity information: H2O used as a noun is very rare.
Dictionary entry details
• H2O (noun)
Meaning:
Binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
Classified under:
Nouns denoting substances
Synonyms:
H2O; water
Hypernyms ("H2O" is a kind of...):
binary compound (chemical compound composed of only two elements)
liquid (a substance in the fluid state of matter having no fixed shape but a fixed volume)
Meronyms (substance of "H2O"):
atomic number 1; H; hydrogen (a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe)
atomic number 8; O; oxygen (a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust)
Hyponyms (each of the following is a kind of "H2O"):
water of crystallisation; water of crystallization; water of hydration (the water present in hydrated compounds)
hard water (water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap)
limewater (solution of calcium hydroxide in water used as an antacid)
meltwater (melted snow or ice)
brine; saltwater; seawater (water containing salts)
fresh water; freshwater (water that is not salty)
slush (partially melted snow)
soft water (water that is not hard (does not contain mineral salts that interfere with the formation of lather with soap))
bilge; bilge water (water accumulated in the bilge of a ship)
ground water; spring water; well water (underground water that is held in the soil and in pervious rocks)
holy water (water that has been blessed by a priest for use in symbolic purification)
distilled water (water that has been purified by distillation)
dishwater (water in which dishes and cooking utensils are washed)
tap water (water directly from the spigot)
bath water (water used for a bath)
Holonyms ("H2O" is a substance of...):
perspiration; sudor; sweat (salty fluid secreted by sweat glands)
body of water; water (the part of the earth's surface covered with water (such as a river or lake or ocean))
flake; snowflake (a crystal of snow)
diamond dust; frost mist; frost snow; ice crystal; ice needle; poudrin; snow mist (small crystals of ice)
dewdrop (a drop of dew)
ice; water ice (water frozen in the solid state)
tear; teardrop (a drop of the clear salty saline solution secreted by the lacrimal glands)
