cath.

Noun

cathedral (plural cathedrals)

1. The principal church serving as the office (and some as place of residence) of an archdiocese's/a diocese's archbishop/bishop which is symbolized by an episcopal throne known as the cathedra.
   • The bishop presided over the ceremony from his seat in the cathedral.
2. (broadly, informal) A large or important church building.
3. (figuratively) A large, impressive, lofty, and/or important building or place of some other kind.
   • a cathedral of commerce
4. A large buttressed structure built by certain termites.

See all 6 meanings of cathedral

Noun

cathode (plural cathodes)

1. 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).
2. (broadly) The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
3. The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
4. That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.