rhamnus noun.
['ramnǝs] M16.[Late Latin from Greek rhamnos; later a modern application of the name by Linnaeus. Cf. RHAMN.]Orig., the Christ's thorn,
Paliurus spina-christi. Now, any of various allied shrubs constituting the genus
Rhamnus (family Rhamnaceae), esp. the buckthorn,
R. cathartica.
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