noun
dark matter
Astronomy term for non-luminous matter inferred from gravitational effects. The Japanese synonym 暗黒物質 is also used.
See also: 暗黒物質
宇宙の質量の大部分はダークマターだと考えられている。
Most of the mass in the universe is thought to be dark matter.
Variant with interpunct; less common but seen in some contexts.
Synonym for dark matter, using kanji rather than katakana. Slightly more formal or academic in tone.
Loanword from English 'dark matter'.