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heliogravure
heliometer
heliopause
heliosphere
heliostat
heliotherapy
heliotrope
heliotropism
helipad
heliport
helium
helix
hell
hell-bent
Hell's Angel
hellacious
Helladic
hellbender
hellcat
hellebore
helleborine
heliometer
heliopause
heliosphere
heliostat
heliotherapy
heliotrope
heliotropism
helipad
heliport
helium
helix
hell
hell-bent
Hell's Angel
hellacious
Helladic
hellbender
hellcat
hellebore
helleborine
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helium: |
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Concise Oxford English Dictionary © 2008 Oxford University Press:
helium /ˈhiːlɪəm/
▶noun the chemical element of atomic number 2, an inert gas which is the lightest member of the noble gas series. (Symbol: He)
– origin C19: mod. L., from Gk hēlios ‘sun’, because its existence was inferred from an emission line in the sun's spectrum.
'helium' also found in these Oxford entries:
Forum discussions with the word(s) "helium" in the title:
helium-filled movie critics
hydrogen to helium?
too cheap for helium
What is the ... of helium. It's gas.
hydrogen to helium?
too cheap for helium
What is the ... of helium. It's gas.
Look up "helium" at Merriam-Webster
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