reflectivity
noun/ˌriːflekˈtɪvəti/, /rɪˌflekˈtɪvəti/
/ˌriːflekˈtɪvəti/, /rɪˌflekˈtɪvəti/
[uncountable] (physics)- the degree to which a material reflects light or radiationTopics Physics and chemistryc2
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reflectivity