Tel`e·hy`dro·ba·rom'e·ter noun [ Greek th^le far + hydrobarometer .] An instrument for indicating the level of water in a distant tank or reservior. Found on http://www.encyclo.co.uk/webster/T/21
telehydrobarometer An instrument for recording the pressure of a head of water or other liquid. Cross references of word families that refer to 'water': aqua-; hydat-; hygro-. Found on http://www.wordinfo.info/words/index/info/view_unit/1009/15