Antihelium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The antiatom form of helium countable, particle, uncountable

    "In 1970, a more complex antinucleus, antihelium-3 (iHe), was discovered in the USSR."

Example

More examples

"In 1970, a more complex antinucleus, antihelium-3 (iHe), was discovered in the USSR."

Etymology

From anti- + helium.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.