Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
hydrophobic is an adjective meaning "lacking affinity for water; tending to repel and not absorb water; tending not to dissolve in or mix with or be wetted by water". It carries 2 recorded senses.
lacking affinity for water; tending to repel and not absorb water; tending not to dissolve in or mix with or be wetted by water
chemistry
abnormally afraid of water
Definitions, synonyms and semantic relations for hydrophobic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.