单词	retroreflection
释义	retroreflection noun ret·​ro·​re·​flec·​tion ˌre-trō-ri-ˈflek-shən  : the action or use of a retroreflector retroreflective ˌre-trō-ri-ˈflek-tiv  adjective Word History First Known Use circa 1965, in the meaning defined above
随便看	geochronologist geochronologists geochronology geochronometric geochronometries geochronometry geochrony geocline geococcyces Geococcyx geococcyxes geocodes geocorona geocoronas geocratic geocronite geocyclic geodal geode geodes geodesic geodesic dome geodesics geodesies geodesist

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