Whenever used in this chapter, unless the context otherwise requires: “Municipality” means any political subdivision of the state having the power to make appropriations or to levy taxes, including any town, city or borough, whether consolidated or unconsolidated, any village, school, sewer, fire or lighting district, beach or improvement association, and any other tax district or association, but not including The Metropolitan District of Hartford County; “budget-making authority”, as applied to towns, cities and boroughs, whether consolidated or unconsolidated, having boards of finance or other bodies or committees charged with preparing the budget, whether created under the general statutes or by special acts, means the board of finance or such other body or committee; as applied to towns having neither boards of finance nor such other bodies or committees, means the board of selectmen; as applied to cities having neither boards of finance nor such other bodies or committees, means the mayor; as applied to boroughs having neither boards of finance nor such other bodies or committees, means the warden; and as applied to independent school, sewer, fire and lighting districts, beach and improvement associations, and all other tax districts and associations, means the district committee or association committee or similar body; “installment”, as applied to taxes, means the whole or any part of a tax other than a special tax; “vote”, unless clearly stated to the contrary, means the affirmation of a majority of those present at a meeting warned and held in case the legislative body exceeds twenty-five in number, and of a majority of those who would be entitled to vote if present in case the legislative body has a membership of twenty-five or fewer.