Definition of pea
1a
: a variable annual Eurasian vine (Pisum sativum) of the legume family that is cultivated especially for its rounded smooth or wrinkled edible protein-rich seeds
b
: the seed of the pea
c
peas also pease plural
: the immature pods of the pea with their included seeds
2
: any of various leguminous plants related to or resembling the pea
—usually used in combination or with a qualifying term chickpeablack-eyed pea
also
: the seed of such a plant
3
: something resembling a pea (as in size or shape)
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Merriam-Webster unabridged
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Time Traveler for pea
The first known use of pea was in 1666
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