Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
hydraulicly is an adverb meaning "in a hydraulic manner". It carries one recorded sense.
in a hydraulic manner
“the block is then tested hydraulically to its full design test pressure on each stream separately”
Definitions, synonyms and semantic relations for hydraulicly come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.