[lady's slipper] n (1597): any of several No. American temperate-zone orchids (as of the genus Cypripedium) having flowers whose shape suggests a slipper--called also lady slipper
LADY'S SLIPPER
Meaning of LADY'S SLIPPER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012