[ milk-weed ]

  1. any of several plants that secrete a milky juice or latex, especially those of the genus Asclepias, as A. syriaca.: Compare milkweed family.

  2. any of various other plants having a milky juice, as certain spurges.

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Origin of milkweed

First recorded in 1590–1600; milk + weed1

Words Nearby milkweed Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use milkweed in a sentence

British Dictionary definitions for milkweed


/ (ˈmɪlkˌwiːd) /

  1. Also called: silkweed any plant of the mostly North American genus Asclepias, having milky sap and pointed pods that split open to release tufted seeds: family Asclepiadaceae: See also asclepias

  2. any of various other plants having milky sap

  1. orange milkweed another name for butterfly weed

  2. another name for monarch (def. 3)

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