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单词 bottomness
释义

Definition of bottomness in English:

bottomness

noun ˈbɒtəmnəs
Particle Physics

  • The characteristic flavour of bottom quarks and bottom antiquarks that distinguishes them from other particles. Also: a quantum number expressing the value of this flavour for a quark or a particle composed of quarks.

Origin

1970s; earliest use found in Science. From bottom + -ness.

Definition of bottomness in US English:

bottomness

nounˈbɒtəmnəs
Particle Physics

  • The characteristic flavour of bottom quarks and bottom antiquarks that distinguishes them from other particles. Also: a quantum number expressing the value of this flavour for a quark or a particle composed of quarks.

Origin

1970s; earliest use found in Science. From bottom + -ness.
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更新时间：2025/6/20 8:49:28