(electronics) Automatic interchanging of connections to a digital meter when polarity is wrong; a minus sign appears ahead of the value on the digital display if the reading is negative.

(biology) That lives north or south of the equator, but not in the tropics

the terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit / a collector or emitter of electric charge in a semiconducting device

plural of Spires