any plant of the genus Polygala, comprising the milkworts.
Origin of polygala
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of, relating to, or belonging to the Polygalaceae, a family of plants having flowers with two large outer petal-like sepals, three small sepals, and three to five petals: includes milkwort
Word Origin for polygala
C18: New Latin, from Greek polugalon, from poly- + gala milk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012