American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "pigweed" in a sentence
"Something appropriate, following the example of Amaranth Advisors LLC, the collapsed hedge fund (named after the herb also known as pigweed)."
"Speakers at the conference talked about unusual or exotic crops, such as amaranth (also known as pigweed), kenaf (related to hemp or jute), camelina (known as wild flax), pennycress"
"Amaranths are sometimes thought fit only for pigs (hence the common name "pigweed" for one despised American species) and worthy of picking only when one is driven by poverty."