1. plural of absorptance; the ratios of absorbed radiant flux to incident radiant flux
Usage: physics; technical

Examples

• The absorptances of different materials were measured under controlled conditions.
• Scientists compared the absorptances of various solar panel coatings.
• The laboratory recorded absorptances ranging from 0.2 to 0.9 for the test samples.
• Higher absorptances indicate better energy absorption capabilities.
• The absorptances varied significantly across different wavelengths of light.