scientific definition of native English

Definition of "Native English"
The term Native English,if used with reference to an individual of limited English proficiency,means:
-- The language normally used by that individual,or,in the case of a child,the language normally used by the parents of the child (except as provided below);
-- In all direct contact with a child (including his or her evaluation),the language normally used by the child in the home or learning environment.
For an individual with deafness or blindness or no written language,the mode of communication is that normally used by the individual (such as oral communication).
出处：
Office of Special Education Programs
Training Overheads on the IDEA '97 Regulations