anocysti

pl. [Gr. ἄνω ( and ) = up, up. wards, and κύστις (kustis) = bladder.] An old division of Echinidæ, comprising those species which have the vent on the dorsal surface. The others were Pleurocysti, with the vent marginal; and Calocysti, with the vent on the under surface. Fleming divided the Anocysti into two sections: (1) Vent ventral, in the axis of the body; genera, Cidara, Echinus, Clypeus. (2) Vent lateral, above the margin; genera, Ca idula and Nucleoli tes. An'-ōde, s . [Gr. ἄνοδος ( anodos ) = a way up; ἀνά ( ana ) = up, and ὁδός ( hodos ) = a way, a road.] Electrolysis: The name given by Faraday to what is called by Daniell the zincode , and by various other writers the positive pole of an electric battery; or, more precisely, the "way" or path by which the electric current pa es out and enters the electrolyte on its way to the other pole. It is a platinum plate occupying the same place in the decomposing cell that a zinc plate does in an ordinary cell of a battery. The other plate corresponding to the second platinum one in an ordinary cell is called by Faraday the cathode or ka thode, by Daniell the platinode , and by many other writers the negative pole . At the positive pole appears one element of the decomposed body called anion, and at the negative the other element termed cation. [KATHODE.]