Definition of twelfthly in US English:



  • See twelfth

    • ‘The Board of Trustees approved twelfthly rates for dental coverage for the period October 1, 2005 through September 30, 2006 as follows: subscriber $15.10, subscriber with one dependent $28.70, subscriber with two or more dependents $42.30.’
    • ‘The District will reimburse twelfthly amounts on a prorated basis toward payment of premiums for eligible unit members to provide coverage through 8/31 / 2006 for the plan.’