son or daughter
Defined in 1 dictionary — U.S. Code
United States Code
5 U.S.C. § 6381 — in this section (2 versions over time)
the term “son or daughter” means a biological, adopted, or foster child, a stepchild, a legal ward, or a child of a person standing in loco parentis, who is—
(A) under 18 years of age; or
(B) 18 years of age or older and incapable of self-care because of a mental or physical disability;
5 U.S.C. § 6329d — in this section
the terms "employee" and "son or daughter" have the meanings given those terms in section 6381; and
29 U.S.C. § 2611 — as used in this subchapter
The term “son or daughter” means a biological, adopted, or foster child, a stepchild, a legal ward, or a child of a person standing in loco parentis, who is—
(A) under 18 years of age; or
(B) 18 years of age or older and incapable of self-care because of a mental or physical disability.