S1Y4L1V4I1N1S1
13 points
SYLVINS is validvalid
SYLVIN, sylvite [n]
SYLVIN, a native potassium chloride, a source of potash, also SYLVINE, SYLVITE [n]
SYLVIN, sylvite [n]
SYLVIN, a native potassium chloride, a source of potash, also SYLVINE, SYLVITE [n]