Papilionaceous Definition
pə-pĭlē-ə-nāshəs
adjective
Shaped like a butterfly.
Webster's New World
Having a bilaterally symmetrical corolla somewhat resembling a butterfly, characteristic of certain plants of the pea family such as a sweet pea.
American Heritage
Of, or pertaining to the Papilionaceae family of plants.
Wiktionary
Origin of Papilionaceous
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Latin pāpiliō pāpiliōn- butterfly pavilion –aceous
From American Heritage Dictionary of the English Language, 5th Edition
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