As a noun hydrogen
is the lightest chemical element (symbol h) with an atomic number of 1 and atomic weight of 100794.
As a letter o is
the letter o with an acute accent above it.
hydrogen
English
Noun
(
en noun)
(
wikipedia hydrogen)
The lightest chemical element (symbol H) with an atomic number of 1 and atomic weight of 1.00794.
Molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature.
An atom of the element.
A sample of the element.
Synonyms
*
Derived terms
(terms derived from hydrogen)
* antihydrogen
* antimoniated hydrogen
* antimoniureted hydrogen, antimoniuretted hydrogen
* arseniureted hydrogen, arseniuretted hydrogen
* carbureted hydrogen, carburetted hydrogen
* dihydrogen
* heavy hydrogen
* hydrogen acetate
* hydrogen acid
* hydrogen air
* hydrogen arsenate
* hydrogen arsenide
* hydrogenate
* hydrogen bomb
* hydrogen bond
* hydrogen-bonded
* hydrogen-bonding
* hydrogen bromide
* hydrogen car
* hydrogen carbonate
* hydrogen chlorate
* hydrogen chloride
* hydrogen chlorite
* hydrogen cyanide
* hydrogen cycle
* hydrogen dioxide
* hydrogen disulfide, hydrogen disulphide
* hydrogen economy
* hydrogen electrode
* hydrogeneted, hydrogenetted
* hydrogen gas
* hydrogen gas electrode
* hydrogen harmonicon
* hydrogenic
* hydrogeniferous
* hydrogen iodate
* hydrogen iodide
* hydrogen ion
* hydrogenise, hydrogenize
* hydrogenium
* hydrogen lamp
* hydrogen-like
* hydrogen line
* hydrogen monoxide
* hydrogen nitrate
* hydrogenolysis
* hydrogenous
* hydrogen oxide
* hydrogen peroxide
* hydrogen phosphate
* hydrogen potassium carbonate
* hydrogen protoxide
* hydrogen selenide
* hydrogen sodium arsenate
* hydrogen spectral series
* hydrogen spectrum
* hydrogen station
* hydrogen sulfate, hydrogen sulphate
* hydrogen sulfide, hydrogen sulphide
* hydrogen sulfite, hydrogen sulphite
* hydrogen telluride
* hydrogen warhead
* hydroquinone
* hydrosulfide, hydrosulphide
* hydrosulphureted, hydrosulphuretted
* hydroxy-
* hydroxyl
* lead hydrogen arsenate
* liquid hydrogen
* orthohydrogen
* parahydrogen
* oxyhydrogen
* phosphorated hydrogen
* phosphureted hydrogen, phosphuretted hydrogen
* photohydrogen
* potassium hydrogen carbonate
* seleniureted hydrogen, seleniuretted hydrogen
* sodium hydrogen carbonate
* sodium hydrogen sulfite, sodium hydrogen sulphite
* sulfide of hydrogen, sulphide of hydrogen
* sulfureted hydrogen, sulphuretted hydrogen
* tellureted hydrogen, telluretted hydrogen
* telluride of hydrogen
Related terms
(terms related to hydrogen)
* hydrate
* hydric
* hydride
* hydr-, hydro-
* hydriodic
* hydrion
*
*
* hydronium
Synonyms
* when used as a packaging agent
Hyponyms
* deuterium
* protium
* tritium
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o
Translingual
{{Basic Latin character info, previous=n, next=p, image=
(
wikipedia o)
Letter
The fifteenth letter of the .
Symbol
(Close-mid back rounded vowel)
(head)
close-mid back rounded vowel
See also
(
Latn-script)
{{Letter
, page=O
, NATO=Oscar
, Morse=–––
, Character=O
, Braille=?
}}
Image:Latin O.png, Capital and lowercase versions of O , in normal and italic type
Image:Fraktur letter O.png, Uppercase and lowercase O in Fraktur
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