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

• anhydrosis
• anhydrous
• ani
• Anicius Manlius Severinus Boethius
• aniconic
• anicteric
• Anigozanthus
• Anigozanthus manglesii
• anil
• anile
• aniline
• aniline dye
• aniline oil
• anilingus
• anima
• animadversion
• animadvert
• animal
• animal black
• animal charcoal
• animal communication
• animal disease
• animal fancier
• animal fat
• animal fiber