English dictionary
hydropneumatic
/,h/aI/dr/oU/n/j//u/'m/&/t/I/k/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
adjective
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Pertaining to, or depending upon, both liquid and gaseous substances; as, <i>hydropneumatic</i> apparatus for collecting gases over water or other liquids.
Source: webster1913