I. adjective Date: 1956 designed to prevent tampering or opening by children , made safe for children (as by safe storage of dangerous materials) , II. transitive verb Date: 1971 to make ~
CHILDPROOF
Meaning of CHILDPROOF in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012