reflectivity

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the fraction of radiant energy that is reflected from a surface
• Syn:
coefficient of reflection, reflection factor, reflectance
• Hypernyms:
coefficient
2. the ability to reflect beams or rays
• Syn:
reflection, reflexion
• Derivationally related forms:
reflective
• Hypernyms:
physical property
• Hyponyms:
echo, reverberation, sound reflection, replication
3. the capability of quiet thought or contemplation
• Syn:
reflectiveness
• Derivationally related forms:
reflective
• Hypernyms:
thoughtfulness