the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > wire as conductor > [noun] > means of connection
terminal screw1857
crossover block1892
tag1919
1892 T. O'C. SloaneStandard Electr. Dict. (1893) 158Cross-over block, a piece of porcelain or other material shaped to receive two wires which are to cross each other.