Definition of INFANT or MINOR:
(noun) / a person who has not attained the age of eighteen years1
Unlike its everyday meaning, "infant" does not mean a very young child or baby. It is the legal term, within the context of New York estate law, to refer to a minor.
1 New York Estates, Powers & Trusts Law §1-2.9-a; Surrogate’s Court Procedure Act § 103 (27)