decertify

de·cer·ti·fy   (dē-sûr'tə-fī')    tr.v.   de·cer·ti·fied, de·cer·ti·fy·ing, de·cer·ti·fies To revoke the certification of: voted to decertify the union. de·cer'ti·fi·ca'tion (dē-sûr'tə-fĭ-kā'shən, dē'sər-) n.

Main Entry: de·cer·ti·fy
Pronunciation: dE-'s&r-t&-"fI
Function: transitive verb
Inflected Forms: -fied; -fy·ing
: to withdraw or revoke the certification of <decertified the class action suit>; especially : to withdraw the certification of (a labor union) as a collective bargaining agent decertify the union>
NOTE: The National Labor Relations Board will decertify a union after an election in which the majority of members do not support the union or after participation in an illegal strike. —de·cer·ti·fi·ca·tion /dE-"s&r-t&-f&-'kA-sh&n/ noun