[ li-gyoo-muh-nuh s ]
/ lɪˈgyu mə nəs /


pertaining to, of the nature of, or bearing legumes.
belonging to the Leguminosae.
Compare legume family.

Origin of leguminous

1650–60; < Latin legūmin- (stem of legūmen; see legume) + -ous

Related forms

non·le·gu·mi·nous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for leguminous

British Dictionary definitions for leguminous


/ (lɪˈɡjuːmɪnəs) /


of, relating to, or belonging to the Fabaceae (formerly Leguminosae), a family of flowering plants having pods (or legumes) as fruits and root nodules enabling storage of nitrogen-rich material: includes peas, beans, clover, gorse, acacia, and carob

Word Origin for leguminous

C17: from Latin legūmen; see legume
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

Science definitions for leguminous


[ lĕgyōōm′, lə-gyōōm ]

Any of a large number of eudicot plants belonging to the family Fabaceae (or Leguminosae). Their characteristic fruit is a seed pod. Legumes live in a symbiotic relationship with bacteria in structures called nodules on their roots. These bacteria are able to take nitrogen from the air, which is in a form that plants cannot use, and convert it into compounds that the plants can use. Many legumes are widely cultivated for food, as fodder for livestock, and as a means of improving the nitrogen content of soils. Beans, peas, clover, alfalfa, locust trees, and acacia trees are all legumes.
The seed pod of such a plant.

Related forms

leguminous adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.