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perfume
perfumer
perfumery
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perfuse
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pergola
perhaps
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periderm
per·i·derm [ pérrə dùrm ]


noun 
Definition:
 
plant tissue: the outer layer of plant tissue in woody roots and stems

per·i·der·mal [ pèrrə dúrm'l ] adjective
per·i·der·mic [ pèrrə dúrmik ] adjective
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