In this part—
"child" means, in relation to a deceased person, any child, stepchild or
adopted child of that person.
"dependant" means, in relation to a deceased person, any person who was being
wholly or substantially maintained or supported (otherwise than for full
valuable consideration) by that deceased person at the time of the person’s
death being—
(a) a parent of that deceased person; or
(b) the parent of a surviving child under the age of 18 years of that deceased person; or
(c) a person under the age of 18 years.