tool subject
noun Education.
a subject that, when mastered, equips students with a skill useful in studying other subjects: Grammar is a tool subject for English composition.
Origin of tool subject
First recorded in 1920–25
Words nearby tool subject
tool engineering,
tool post,
tool pusher,
tool shed,
tool steel,
tool subject,
tool up,
tool-maker,
toolbar,
toolbox,
tooled up