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polysynthetic
polysystemicism
polytechnic
polytene
polytetrafluoroethylene
polytheism
polythene
polytonality
polytrophic
polytypic
polyunsaturated
polyurethane
polyuria
polyvalent
polyvinyl
polyvinyl acetate
polyvinyl chloride
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polyspermy
pol·y·sper·my [ póllee spùrmee ]


noun 
Definition:
 
multiple fertilization of ovum: the fertilization of an egg by several spermatozoa
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