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1. or pen·tam·er·al (-əl) Having five similar parts.
2. Having flower parts, such as petals, sepals, and stamens, in sets of five.
pen·tam′er·ism, pen·tam′er·y n.
(Botany) consisting of five parts, esp (of flowers) having the petals, sepals, and other parts arranged in groups of five
penˈtamerˌism, penˈtamery n
pen•tam•er•ous(pɛnˈtæm ər əs)
1. consisting of or divided into five parts.
2. (of flowers) having five members in each whorl.
pen•tam′er•ism, pen•tam′er•y, n.
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|Adj.||1.||pentamerous - divided into five parts; specifically, having each floral whorl consist of five (or a multiple of five) members; "pentamerous flowers"|
divided - separated into parts or pieces; "opinions are divided"