Browse terms - alphabetical

Refraction of the eye (1)
Refraction: Spectrum analysis (1)
Refraction, Terrestrial (1)
Refraction. Terrestrial (1)
refractive index (1)
Refractive index (1)
refractivity (1)
Refractometer (1)
refractory (1)
Refractory materials (1)
Refrain (1)
refreezing (1)
Refreezing (1)
Refrigeration and refrigerating machinery (1)
Refrigeration as a disinfectant (1)
refrigerator (1)
Refrigerator-cars (1)
Refrigerators (1)
Refuge (1)
Refugees, Colored (1)