Definition of lamb's quarter in English:

lamb's quarter

(also lamb's quarters)

noun

North American
  • A herbaceous plant with mealy, edible leaves, often considered to be a weed; fat hen.

    Also called pigweed
    • ‘Certain common weeds, such as black nightshade, redroot pigweed, lamb's-quarters, and horsenettle will also support growth of the Verticillium fungus, and fields with a high population of these weeds should also be avoided.’