1. (physics) having dimension zero; expressable as a pure number not needing any units
   "any ratio of masses is dimensionless"

Encyclopedia: Dimensionless

• Bachelor of Science
• Bachelor of Science in Architecture
• Bachelor of Science in Engineering
• Bachelor of Theology
• bachelor pad
• bachelor party
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• bachelor's degree
• bachelor-at-arms
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• Bacillaceae
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• bacillary white diarrhoea
• bacilliform
• bacillus
• Bacillus anthracis
• Bacillus globigii
• Bacillus subtilis
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