1. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation
   - optical density, photographic density, absorbance

Type of: denseness, density

• schistosome
• schistosome dermatitis
• schistosomiasis
• Schizachyrium
• Schizachyrium scoparium
• Schizaea
• Schizaea pusilla
• Schizaeaceae
• schizanthus
• schizo
• schizocarp
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• schizoid
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• schizont
• schizopetalon
• Schizopetalon walkeri
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• Schizophragma hydrangeoides
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• schizophrenic psychosis
• Schizophyceae
• Schizophyta