Letters that make externalisation
s, a, o, e, l, n, r, t, i, x are letters that make 'externalisation'
Words within externalisation
ER, ti, te, XT, SA, extern, RN, Ali, Sat, at, external, ex, on, li, ern, tern, AL, Io, ion, Al, At, Er, Li, Rn, Na, Te, Ti, RNA are words within 'externalisation'