'Lobbyist' definitions:

Definition of 'lobbyist'

From: WordNet
noun
Someone who is employed to persuade legislators to vote for legislation that favors the lobbyist's employer

Definition of 'Lobbyist'

From: GCIDE
  • Lobbyist \Lob"by*ist\, n. A member of the lobby; a person who solicits members of a legislature for the purpose of influencing legislation. [U.S.] [1913 Webster]

Synonyms of 'lobbyist'

From: Moby Thesaurus