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Webster 1913 Edition
Milk vetch
Milk′ vetchˊ
.(Bot.)
A leguminous herb (
Astragalus glycyphyllos
) of Europe and Asia, supposed to increase the secretion of milk in goats. ☞ The name is sometimes taken for the whole genus
Astragalus
, of which there are about two hundred species in North America, and even more elsewhere.