S1I1G2M3A1T1E1
10 points
SIGMATE is validvalid
SIGMA, a Greek letter [adj]
S-shaped, also SIGMATED, SIGMOID, SIGMOIDAL [adj] / to add a sign to [v SIGMATED, SIGMATING, SIGMATES]
SIGMA, a Greek letter [adj]
S-shaped, also SIGMATED, SIGMOID, SIGMOIDAL [adj] / to add a sign to [v SIGMATED, SIGMATING, SIGMATES]