[syn: semimonthly, bimonthly]
2.  every two months; 
- Example: "the bill was payable bimonthly"
The Collaborative International Dictionary of English v.0.48:
bimonthly \bi*month"ly\, a. [Pref. bi- + monthly.]
   Occurring, done, or coming, once in two months; as, bimonthly
   visits; bimonthly publications. -- n. A bimonthly
   publication.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Bimonthly \Bi*month"ly\, adv.
   Once in two months.
   [1913 Webster]
WordNet (r) 3.0 (2006):
bimonthly
    adv 1: twice a month; "salaries are paid semimonthly" [syn:
           semimonthly, bimonthly]
    2: every two months; "the bill was payable bimonthly"
    adj 1: occurring twice a month; "a semimonthly publication"
           [syn: semimonthly, bimonthly]
    2: occurring every two months; "bimonthly visits" [syn:
       bimonthly, bimestrial]
    n 1: a periodical that is published twice a month or every two
         months (either 24 or 6 issues per year)