cathode en · NOUN
Pronunciation
- (Southern-England) audio
- /kæt̪ʰoɖ/ (South-Asia)
- /ˈkæθ.oʊd/
Etymology
From Ancient Greek κατα- (kata-, “down”) and ὁδός (hodós, “journey, way”), equivalent to Ancient Greek κάθοδος (káthodos, “way down, descent”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By surface analysis, cath- (alternative form of cata-) + -ode.
Meanings
- An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).
- (broadly) The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
- The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
- That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| cathodes | Number=Plur | lexicographic | |
| kathode | alternative, archaic | lexicographic |
Antonyms
Deriveds
cold-cathode light · cathodoluminescence · anticathode · multicathode · cold-cathode lamp · microcathode · catholyte · photocathode · cascode · biocathode · cathodoluminescent · hot cathode · cathode dark space · cathode ray · cathodograph · cold-cathode tube · cathodal · cold cathode · cathode-ray tube · cold-cathode fluorescent lamp · cathodic
Relateds
Translations (54)
ca càtode (electrode through which current flows outward) · eo katodo (electrode through which current flows outward) · haw ʻūholo uila ʻine (electrode through which current flows outward) · km កាតូដ (electrode through which current flows outward) · fr cathode (electrode through which current flows outward) · sv katod (electrode through which current flows outward) · ms katod (electrode through which current flows outward) · az katod (electrode through which current flows outward) · nl kathode (electrode through which current flows outward) · sw kathodi (electrode through which current flows outward) · pl katoda (electrode through which current flows outward) · ko 캐소드 (electrode through which current flows outward) · is bakskaut (electrode through which current flows outward) · de Minuspol (electrode through which current flows outward) · lv katods (electrode through which current flows outward) · it catodo (electrode through which current flows outward) · is katóða (electrode through which current flows outward) · cmn 正極 /正极 (electrode through which current flows outward) · cmn 陰極 /阴极 (electrode through which current flows outward) · ja カソード (electrode through which current flows outward) · mr ऋणाग्र (electrode through which current flows outward) · km កាតូត (electrode through which current flows outward) · es cátodo (electrode through which current flows outward) · vi âm cực (electrode through which current flows outward) · et katood (electrode through which current flows outward) · pt catódio (electrode through which current flows outward) · ko 음극 (electrode through which current flows outward) · mi pito hopuirahiko (electrode through which current flows outward) · is neikvætt rafskaut (electrode through which current flows outward) · pt cátodo (electrode through which current flows outward) · be като́д (electrode through which current flows outward) · pt catodo (electrode through which current flows outward) · is mínusskaut (electrode through which current flows outward) · cs katoda (electrode through which current flows outward) · gl cátodo (electrode through which current flows outward) · hi ऋणाग्र (electrode through which current flows outward) · mk като́да (electrode through which current flows outward) · lt katodas (electrode through which current flows outward) · hu katód (electrode through which current flows outward) · hi कैथोड (electrode through which current flows outward) · uk като́д (electrode through which current flows outward) · eu katodo (electrode through which current flows outward) · gu ઋણાગ્ર (electrode through which current flows outward) · tl balindas (electrode through which current flows outward) · is neiskaut (electrode through which current flows outward) · bg като́д (electrode through which current flows outward) · ru като́д (electrode through which current flows outward) · fi katodi (electrode through which current flows outward) · mi pitoiho (electrode through which current flows outward) · hy կաթոդ (electrode through which current flows outward) · id katode (electrode through which current flows outward) · ja 陰極 (electrode through which current flows outward) · de Kathode (electrode through which current flows outward) · fa کاتد (electrode through which current flows outward)