di·​ode ˈdī-ˌōd How to pronounce diode (audio)
: an electronic device that has two electrodes or terminals and is used especially as a rectifier

Examples of diode in a Sentence

Recent Examples on the Web The new display shines red, green, and blue laser diodes at a spatial light modulator. IEEE Spectrum, 8 May 2024 In order to split this light into the whole spectrum of colors that creates white light, manufacturers paint a material called phosphor onto the diodes inside the bulb. Natalie Wallington, Kansas City Star, 22 Mar. 2024 In typical radio-frequency devices, such as transistors, solid-state diodes, and microwave vacuum tubes, the power tends to fall as the inverse of the frequency squared. IEEE Spectrum, 7 Mar. 2024 State-of-the-art aluminum nitride diodes are tested at Nagoya University. IEEE Spectrum, 30 Jan. 2024 Shapiro is a legal philosopher at Yale University, but as a child, his mathematician father—who worked at Bell Labs—sparked an interest in computing by bringing home various components, like microchips, resistors, diodes, LEDs, and breadboards. Jennifer Ouellette, Ars Technica, 27 May 2023 The original method of creating dual-pixel autofocus sensors involved placing two photodiodes under a shared lens, which allowed the sensor to detect when incoming light on both diodes was in phase, and therefore, in focus. IEEE Spectrum, 19 Jan. 2024 The researchers suggest this could lead to new ways of creating atomic-scale superconducting diodes. IEEE Spectrum, 14 Mar. 2023 Longview intends to use lasers powered by diodes from the semiconductor industry, a technology that can be 20 percent efficient and fire several times a second. Kenneth Chang, New York Times, 13 Nov. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diode.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


di- + -ode

Note: The term was originated by the British physicist William Henry Eccles (1875-1966) in the journal The Electrician, vol. 82, no.16 (April 18, 1919), p. 475.

First Known Use

1919, in the meaning defined above

Time Traveler
The first known use of diode was in 1919

Dictionary Entries Near diode

Cite this Entry

“Diode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diode. Accessed 21 May. 2024.

Kids Definition


di·​ode ˈdī-ˌōd How to pronounce diode (audio)
: an electronic device with two electrodes that is used especially for changing alternating current into direct current

More from Merriam-Webster on diode

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