fresnel
noun 2name 1
Definitions
noun
1
A unit of frequency equal to 10¹² hertz, or one terahertz.
2
A Fresnel lens or a light feature using such a lens
name
1
A surname from French, notably held by Augustin-Jean Fresnel.
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noun
A unit of frequency equal to 10¹² hertz, or one terahertz.
A Fresnel lens or a light feature using such a lens
name
A surname from French, notably held by Augustin-Jean Fresnel.