Meaning of AD HOC in English

AD HOC

Function: adjective

Date: 1879

1 a : concerned with a particular end or purpose <an ad hoc investigating committee> b : formed or used for specific or immediate problems or needs < ad hoc solutions>

2 : fashioned from whatever is immediately available : IMPROVISED <large ad hoc parades and demonstrations ― Nat Hentoff>

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.