yellow lady's-slipper
- a showy orchid, Cypripedium calceolus, of eastern North America, having purple-tinged yellow flowers with an inflated lip petal.
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Origin of yellow lady's-slipper
An Americanism dating back to 1730–40
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018