A meeting of the local members of a political party especially to select delegates to a convention or register preferences for candidates running for office.
A closed meeting of party members within a legislative body to decide on questions of policy or leadership.
A group within a legislative or decision-making body seeking to represent a specific interest or influence a particular area of policy: a minority caucus.
Chiefly British A committee within a political party charged with determining policy.
v.
cau·cused or cau·cussed, cau·cus·ing or cau·cus·sing, cau·cus·es or cau·cus·ses
v.
intr. To assemble in or hold a caucus. v.
tr. To assemble or canvass (members of a caucus).
[After the Caucus Club of Boston (in the 1760s), possibly from Medieval Latin caucus, drinking vessel.]