Adar She·ni 
(shā-nē)
(shā-nē)n.
The name given to the month of Adar when it occurs after the intercalary month of Adar Rishon. Also called Veadar. See Table at calendar.
[Hebrew 'ădār šēnî, second Adar : 'ădār, Adar; see ADAR + šēnî, second; see ṯn in Semitic roots.]