Parapositronium is a related term of orthopositronium.
In physics|lang=en terms the difference between parapositronium and orthopositronium
is that parapositronium is (physics) used attributively to describe the state of a positronium exotic atom in which the positron and electron have antiparallel spins while orthopositronium is (physics) used attributively to describe the state of a positronium exotic atom in which the positron and electron have parallel spins.
As nouns the difference between parapositronium and orthopositronium
is that parapositronium is (physics) used attributively to describe the state of a positronium exotic atom in which the positron and electron have antiparallel spins while orthopositronium is (physics) used attributively to describe the state of a positronium exotic atom in which the positron and electron have parallel spins.
parapositronium
English
Noun
(-)
(physics) Used attributively to describe the state of a positronium exotic atom in which the positron and electron have antiparallel spins
Related terms
*orthopositronium orthopositronium
English
Noun
(-)
(physics) Used attributively to describe the state of a positronium exotic atom in which the positron and electron have parallel spins
Related terms
*parapositronium