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polycyclic
polycystic
polycystic ovarian syndrome
polycythemia
polydactyl
polydipsia
polyelectrolyte
polyembryony
polyene
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polyethylene
polyethylene glycol
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polygenic disorder
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polyhedral angle
pol·y·he·dral an·gle (plural pol·y·he·dral an·gles)


noun 
Definition:
 
angle formed by intersecting planes: a geometric angle formed by the intersection of three or more planes meeting at a point such as the peak of a pyramid
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