Cathetus, and Catheta

[Lat.] ( Arch. ) A vertical line falling from the extremity of the under-side of the cymatium of the Ionic capital through the centre of the volute. Ca'thion, n . [Gr. kata , from; eio , I go.] See ANION. Cathode, n. [Gr. kata , from; odos , a way.] ( Phy . ) A term introduced by Faraday to designate the negative pole of any electrical arrangement for decomposing a chemical compound; the C., in other words, is the surface by which the electric current leaves the body undergoing decomposition. - See ANODE; ELECTROLYSIS. Cat'holes, n . pl . ( Naut .) Two holes in the after part of a ship, through which a hawser may pa to the capstan in heaving the ship astern.