Definitions. 1  Abatements are reductions in tax assessments and are a normal part of the IRS tax administration process. Abatements may occur for a number of reasons. 2  Accrual Accounting is the accounting basis whereby transactions and events are recognized when they occur, regardless of when cash is received or paid.
(March 2008) In United States aviation, a terminal radar service area (TRSA) is a delimited airspace in which radar and air traffic control services are made available to pilots flying under instrument flight rules or (optionally) visual flight rules for the purposes of maintaining aircraft separation.
Mensa, meaning table, can refer to the following: Mensa International is an organization for persons with high IQs. Mensa is a southern constellation. Mensa is a term used by geologists to refer to an extraterrestrial mesa. Mensa (restaurant) is a type of restaurant that specialises in cheap food for students. Mensa International is an organization for persons with high IQs. 2  Mensa is a southern constellation. 3  Mensa is a term used by geologists to refer to an extraterrestrial mesa. 4  Mensa (restaurant) is a type of restaurant that specialises in cheap food for students.