also: ボトムクオーク
bottom quark
A type of elementary particle in the Standard Model of particle physics.
The bottom quark is classified as a third-generation quark.
Variant spelling with クオーク instead of クォーク.
Spelling with interpunct, sometimes used in technical writing.
Rare variant combining interpunct and クオーク spelling.
From English 'bottom quark'. The term 'bottom' was chosen as a counterpart to 'top' quark, reflecting their pairing in the third generation of quarks.