spiral of Archimedes
noun phrase
spiral of Ar·chi·me·des
-ˌär-kə-ˈmē-dēz 
: a plane curve that is generated by a point moving away from or toward a fixed point at a constant rate while the radius vector from the fixed point rotates at a constant rate and that has the equation ρ = a θ in polar coordinates
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“Spiral of Archimedes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spiral%20of%20Archimedes. Accessed 15 Dec. 2024.
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