• synonyms


  1. any goosefoot of the genus Chenopodium, especially C. album.
  2. any of certain amaranths, as Amaranthus retroflexus.
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Origin of pigweed

First recorded in 1795–1805; pig1 + weed1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pigweed

Historical Examples

  • First, I picked the pigweed and tansy, or how could she have made the cheese?

    Aunt Madge's Story

    Sophie May

  • A pigweed, and a month from now it would be waist high to you.

    The Black Fawn

    James Arthur Kjelgaard

  • Weed seeds such as those of spurges (Euphorbia), ragweed, and pigweed were found in trace amounts in the diet of the crows.

  • A plant like the pigweed, which lives only one year, is called an annual and is one of the easiest weeds to destroy.

    Agriculture for Beginners

    Charles William Burkett

  • Barnyard grass (Panicum crusgalli) behaved like pigweed, and 'needed considerable attention.'

British Dictionary definitions for pigweed


  1. Also called: redroot any of several coarse North American amaranthaceous weeds of the genus Amaranthus, esp A. retroflexus, having hairy leaves and green flowers
  2. a US name for fat hen
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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