Noun pigweed has 3 senses
- lamb's-quarters, pigweed, wild spinach, Chenopodium album - common weedy European plant introduced into North America; often used as a potherb
--1 is a kind of goosefoot
--1 has parts: lamb's-quarter, pigweed, wild spinach; wild spinach
- pigweed, Amaranthus hypochondriacus - leaves sometimes used as potherbs; seeds used as cereal; southern United States to Central America; India and China
--2 is a kind of amaranth
- lamb's-quarter, pigweed, wild spinach - leaves collected from the wild
--3 is a kind of greens, green, leafy vegetable
--3 is a part of lamb's-quarters, pigweed, wild spinach, Chenopodium album
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