diode
part of speech
noun (a diode, diodes)
meaning for a pupil
1) A diode is a small electronic part that lets electric current flow in only one direction, like a one-way door. tree →
2) A light-emitting diode (LED) is a diode that gives out light when current passes through it. tree →
sense in the lessons
Used in science and technology lessons about circuits: a diode in the wrong way round stops the circuit working. LEDs are in torches, screens, traffic lights and Christmas lights because they use little energy. Phrases: light-emitting diode (LED), a diode in a circuit, forward and reverse.
examples
- A diode lets the current go only one way. tree →
- We put the LED in the circuit backwards, so it did not light up. tree →
- Our torch uses tiny diodes instead of an old bulb. tree →
- The circuit diagram shows a diode as a triangle with a line. tree →
- LED stands for light-emitting diode. tree →
- The robot's eyes are two red diodes. tree →
- If the diode is turned round, the buzzer stops. tree →
note
Countable. Say «DY-ode». LED is said letter by letter (L-E-D) or sometimes «led». A diode is not a battery: it does not make electricity, it only controls which way it flows. Its long leg is usually the positive one.
Trees and pragmatics
Every meaning and example of «diode» parsed by Mova, each sentence with its dependency tree and frames.