NAPHTHALENES
Scrabble letter values: N1A1P3H4T1H4A1L1E1N1E1S1 = 20
Definition
NAPHTHALENES is the plural of NAPHTHALENE.
noun NAPHTHALENE: a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs.