noun🔗ShareAbsorbance, absorptionA logarithmic measure of the amount of light that is absorbed when passing through a substance; the capacity of a substance to absorb light of a given wavelength; optical density."The plant's leaves showed high absorbance of red light, which helped it efficiently convert sunlight into energy. "Les feuilles de la plante ont montré une forte absorbance de la lumière rouge, ce qui l'a aidée à convertir efficacement la lumière du soleil en énergie.sciencechemistryphysicsbiochemistrysubstancematerialChat with AIVocabulary GamePractice Reading