ˈcircuit board BrE AmE noun [countable]
a board in a piece of electrical equipment that uses thin lines of metal to ↑ conduct (=carry) electricity between different points
ˈcircuit board BrE AmE noun [countable]
a board in a piece of electrical equipment that uses thin lines of metal to ↑ conduct (=carry) electricity between different points
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012