s, o, e, n, p, c, r, i, u are letters that make 'perniciousness'
ER, pe, CIO, IC, RN, IOU, Ci, USN, SS, pernicious, ic, ci, ern, US, NE, ness, Io, Es, Er, Ne, Ni, Rn, Sn are words within 'perniciousness'
1 possible definitions for 'perniciousness'
Under this definition, perniciousness is a noun and has the following properties:
toxicity has the same meaning as perniciousness
'perniciousness' can be a type of unwholesomeness, morbidness, morbidity.
deadly, baneful, pernicious, pestilent, insidious, subtle are derivatives of 'perniciousness'.