reflectance
re flect ance |riˈflektəns rəˈflɛktəns | ▶noun Physics the measure of the proportion of light or other radiation striking a surface that is reflected off it.
re ¦flect |ance |rɪˈflɛkt (ə )ns | ▶noun Physics the measure of the proportion of light or other radiation striking a surface which is reflected off it.
The Wordsmith Dictionary
The Wordsmith Dictionary