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peritrack
peritrich
periwig
periwinkle (1)
periwinkle (2)
perjink
perjure
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perjury
perk (1)
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perk (3)
perk up
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perisperm
per·i·sperm [ pérrə spùrm ]


noun 
Definition:
 
plant tissue: nutritive tissue from a plant nucleus that surrounds the seed embryo

per·i·sperm·al [ pèrrə spúrm'l ] adjective
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