light-emittingadj.
/ˌlʌɪtᵻˈmɪtɪŋ/, U.S. /ˌlaɪdəˈmɪdɪŋ/, /ˌlaɪdiˈmɪdɪŋ/ That emits light; characterized by the emission or production of light.
ΚΠ
1702 R. Eliot Anat. Ess. ii. 114 The Lucide, or rather light emitting and reflecting Bodies.
1801 Med. Repository 4 380 The remarks hitherto made chiefly refer to the larger species of light-emitting creatures.
1946 Nature 7 Sept. 347/2 In many circuits increased reproducibility of electrical conditions does not indicate an increased reproducibility of light-emitting characteristics.
1999 New Scientist 14 Aug. 20/1 Fireflies of the genus Photinus contain potent toxins called lucibufagins, as well as light-emitting luciferins.
2014 New Scientist 19 July 12/1 The universe is far brighter than it should be based on the number of light-emitting objects we can find.
Compounds
light-emitting diode n. Electronics a semiconductor diode that emits light when a current flows through it; abbreviated LED.
ΘΚΠ
the world > matter > physics > solid state physics > semiconductivity > semiconductor diode > [noun]
crystal rectifier1907
diode1919
varistor1937
photodiode1945
crystal diode1946
junction rectifier1951
junction diode1952
Zener diode1952
Zener1958
tunnel diode1959
light-emitting diode1962
Shockley diode1962
LED1968
Schottky diode1968
OLED1996
1962 Techn. Man. No. 11-5815-281-35 (U.S. Dept. Army) 56.7/1 A photo isolator device containing a light-emitting diode and an NPN photo-transistor.
1986 Sci. Amer. Oct. 52/2 The light source is a semiconductor laser or a light-emitting diode.
2020 Bismarck (N. Dakota) Tribune (Nexis) 17 June b4 The device is equipped on one side with light-emitting diodes, which send out two different types of light, red and infrared.
This entry has been updated (OED Third Edition, December 2021).
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adj.1702