Definition of saltwort
1
: any of a genus (Salsola) of plants (such as the Russian thistle) of the goosefoot family of which some have been used in making soda ash
2
: a low-growing strong-smelling succulent coastal shrub (Batis maritima of the family Bataceae) of warm parts of the New World
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Merriam-Webster unabridged
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Time Traveler for saltwort
The first known use of saltwort was in 1568
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