New York Consolidated Laws, Estates, Powers and Trusts Law - EPT § 1-2.19 Will

(a) [Eff. until Dec. 12, 2027.  See, also, par. (a) below.] A will is an oral declaration or written instrument, made as prescribed by 3-2.1 or 3-2.2 to take effect upon death, whereby a person disposes of property or directs how it shall not be disposed of, disposes of his body or any part thereof, exercises a power, appoints a fiduciary or makes any other provision for the administration of his estate, and which is revocable during his lifetime.

(a) [Eff. Dec. 12, 2027.  See, also, par. (a) above.] A will is a written instrument, oral declaration or electronic record, made as prescribed by 3-2.1, 3-2.2 or 3-6.6, respectively, to take effect upon death, whereby a person disposes of property or directs how it shall not be disposed of, disposes of their body or any part thereof, exercises a power, appoints a fiduciary or makes any other provision for the administration of their estate, and which is revocable during their lifetime.

(b) Unless the context otherwise requires, the term “will” includes a “codicil”.