The ratio of energy absorbed by a body to energy incident upon the same body.
Absorptivity, from absorptive adj. from → absorb + → -ity, suffix expressing state or condition.
Daršamâyi, from daršamâ quality adj. from daršam, present stem of daršamidan + -yi noun suffix.
Fr.: rapport absorptivité-émissivité
For a spatial object, the ratio between its absorption of solar radiation and its infrared emission.
→ absorptivity; → emissivity; → ratio.