As used in this chapter, the following words shall, unless the context clearly requires otherwise, have the following meanings:—\n''Bank'', an association or corporation chartered by the commonwealth under chapter 167H, 168, 170 or 172.\n''Board'', the board of trustees or directors in a bank.\n''Capital stock'', the sum of the par value of the preferred and common shares of capital stock of a stock corporation, issued and outstanding.\n''Commissioner'', the commissioner of banks.\n''Mutual bank'', an association or corporation chartered by the commonwealth under chapter 168 or 170 which is in mutual form.\n''Stock corporation'', a savings bank under chapter 168, a co-operative bank under chapter 170, which has been chartered, converted or reorganized to a stockholder form of corporation or a trust company under chapter 172.\n''Surplus account'', an account so designated on the books of a bank and consisting of amounts required by law.
Massachusetts Legal Code