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arc
arc cosecant
arc cosine
arc cotangent
Arc de Triomphe
arc furnace
arc light
arc secant
arc second
arc sine
arc tangent
arc welding
arcade
arcade game
Arcadia (1)
Arcadia (2)
Arcadian
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arc second
arc sec·ond (plural arc sec·onds)


noun 
Definition:
 
unit for measuring tiny angles: a unit equal to 1/3600th of a degree, used for measuring very small angles
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