orthohydrogen

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English[edit]

English Wikipedia has an article on:
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Etymology[edit]

ortho- +‎ hydrogen

Noun[edit]

orthohydrogen (countable and uncountable, plural orthohydrogens)

  1. (physics) form of the hydrogen molecule (H2) in which the two nuclei have parallel spin; about 75% of natural hydrogen

Antonyms[edit]