Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
Any helium ion, the nucleus of any helium atom.
Definition source: English Wiktionary via Wiktextract
Usage: sometimes
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: ion, particle
noun
Any helium ion, the nucleus of any helium atom.
A helium-3 ion, the nucleus of a helium-3 atom. Formula: 3He+2.
Definition source: English Wiktionary via Wiktextract
Usage: sometimes, usually
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: antihelion
Broader terms: ion, particle, helion
noun
A meteoroid that arrives from the approximate direction of the Sun.
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From helium + -on.
Across languages
5 source translations are retained for this English entry.
