H2O
Two hydrogens, one oxygen
H2O is the chemical formula for water—two hydrogen atoms bonded to one oxygen atom.
The term appears in scientific contexts but also in casual speech as a slightly playful or emphatic way to say water: I need some H2O after that workout.
The formula has become shorthand for water in brand names, health discussions, and jokes about hydration.
Massive saltwater body
- seaSaltwater body, not ocean
- lakeEnclosed body of freshwater
- riverLarge flowing watercourse
- streamSteady continuous flow
pond · aquifer · glacier · iceberg · reservoir · creek · spring · groundwater
Need for fluid
- quenchSatisfy or extinguish
- rehydrateRestore fluid levels
- dehydrateRemove water from
- electrolytesConducting ions in solution
fluids · moisture · drink · replenish · absorb · imbibe · sweat · perspiration
Simplest atomic element
- oxygenElement eight, colorless gas
- covalentSharing electrons between atoms
- dipoleSeparated opposite charges
- polarityState of opposing forces
atoms · bonding · chemical · compound · molecular · formula · solvent · angle
Free-flowing substance
- solidFirm matter state
- gasFormless, expanding substance
- iceWater's solid form
- steamHeated water's gaseous form
vapor · frozen · boiling · freezing · melting · phase · temperature · pressure
Liquid turning to gas
- precipitationAtmospheric water deposit
- condensationVapor turning to liquid
- rainWater dropping from clouds
- snowFrozen crystalline precipitation
vapor · humidity · cloud · runoff · transpiration · infiltration · collection · sublimation
Purified by vaporization
- filteredScreened to remove contaminants
- purifiedCleared of unwanted substances
- sterileFree from microorganisms
- uncontaminatedFree from impurities
pristine · clean · sanitized · unpolluted · deionized · potable · treated · spring
Allowing light through
- crystalOrdered-atom solid
- clearWithout obstruction or fog
- limpidPerfectly clear, unclouded
- pellucidTransparently clear
sparkling · glistening · shimmering · turbid · cloudy · murky · sediment · clarity
Animate state
- survivalRemaining alive against odds
- necessityIndispensable requirement
- sustenanceMeans of living
- vitalityCapacity for spirited existence
nourishment · growth · fundamental · indispensable · resource · scarcity · shortage · conservation
ocean
Massive saltwater body
stream · pond · aquifer · glacier · iceberg · reservoir · creek · spring · groundwater · well
thirst
Need for fluid
electrolytes · fluids · moisture · drink · replenish · absorb · imbibe · sweat · perspiration · parched
hydrogen
Simplest atomic element
- oxygenElement eight, colorless gas
- covalentSharing electrons between atoms
- dipoleSeparated opposite charges
polarity · atoms · bonding · chemical · compound · molecular · formula · solvent · angle · electron
liquid
Free-flowing substance
steam · vapor · frozen · boiling · freezing · melting · phase · temperature · pressure · sublimation
evaporation
Liquid turning to gas
- precipitationAtmospheric water deposit
- condensationVapor turning to liquid
- rainWater dropping from clouds
snow · vapor · humidity · cloud · runoff · transpiration · infiltration · collection · sublimation · fog
distilled
Purified by vaporization
- filteredScreened to remove contaminants
- purifiedCleared of unwanted substances
- sterileFree from microorganisms
uncontaminated · pristine · clean · sanitized · unpolluted · deionized · potable · treated · spring · mineral
transparent
Allowing light through
pellucid · sparkling · glistening · shimmering · turbid · cloudy · murky · sediment · clarity · visibility
life
Animate state
- survivalRemaining alive against odds
- necessityIndispensable requirement
- sustenanceMeans of living
vitality · nourishment · growth · fundamental · indispensable · resource · scarcity · shortage · conservation · access
- Chemical FormulasCO2, NaCl, O2, N2, H2
- Chemistry Notationchemical symbol, chemical formula, molecular formula, chemical equation, subscript
- hydrogen chalcogenideshydrogen sulfide
- abbreviationsMr, Mrs, Ms, Dr, Jr
- Hardcore Punkhardcore punk, Black Flag, hardcore, hardcore shows, mosh pit
- ML toolsTensorFlow, Flux, Shogun, Ludwig, Orange
H2Odry
Free from moisture
dryness · aridity · drought · desiccation · dehydration
water, waters, watered, watering, waterway, waterfall, underwater, waterproof, watery