Is “Rouleaux” a Scrabble word?
Yes
ROULEAUX
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Rouleaux
noun
1.A little roll; a roll of coins put up in paper, or something resembling such a roll.
2.A decorative technique that involves creating patterns with piping, cording or bias tape. A rouleau loop uses the same cord or piping as a way of fastening buttons, most notably down the back of bridal gowns.
“rouleau loop”
3.(chiefly in the plural) A stack of aggregated red blood cells, as seen in certain haematological and other diseases.