Letters that make secondary emission
s, a, o, d, e, n, c, m, r, i, y are letters that make 'secondary emission'
Words within secondary emission
Sion, Miss, mi, si, miss, EC, SEC, MI, DA, ar, em, SE, SI, SS, secondary, second, on, sec, con, mission, emission, AR, CO, ND, Io, ion, Ar, Co, Nd, Se, Si are words within 'secondary emission'