American Heritage Dictionary
Century Dictionary
(5)
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
(In technical jargon, an anti-cloak would be anisotropic negative refractive index material that is impedance matched to the positive refractive index of the invisibility cloak).— Scientific Blogging
We have fabricated refractive sapphire microlenses and characterized their properties for what we believe to be the first time.— CiteULike: Everyone's library
The theoretical anti-cloak that Chen and his colleagues describe would cancel out the effect of a cloaking device by coming into contact with the inner surface of the cloaking device's refractive material.— msnbc.com: Community
Thierry Hufnagel, M.D., and Benjamin Chang, M.D., are among less than 100 refractive surgeons in the United States certified by the Council for Refractive Surgery Quality Assurance.— Long Island Press
This includes detailed information about our surgeons, our breakthrough procedures in lens implant technology, how we customize surgical plans for patients using advanced diagnostic and imaging, risks and complications regarding refractive surgery,— Long Island Press

Century Dictionary (1)
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