Hypertext Webster Gateway: "Brownstone"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Brownstone \Brown"stone`\, n.
A dark variety of sandstone, much used for building purposes.
From WordNet (r) 1.7 (wn)
brownstone
n 1: a reddish brown sandstone; used in buildings
2: a row house built of brownstone; reddish brown in color
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