slan·der 
(sl
ăn
d
ər)
n.1. Law Oral communication of false and malicious statements that damage the reputation of another.
2. A false and malicious statement or report about someone.
v. slan·dered, slan·der·ing, slan·ders
v.tr. To utter a slander about. See Synonyms at malign.
v.intr. To utter or spread slander.
[Middle English slaundre, from Old French esclandre, alteration of escandle, from Latin scandalum, cause of offense, stumbling block; see SCANDAL.]
slander·er n.
slander·ous adj.
slander·ous·ly adv.