Meanings
nounhydralazine (countable and uncountable, plural hydralazines)
plural hydralazines
- countableuncountablemedicineA direct-acting smooth muscle relaxant used to treat hypertension by acting as a vasodilator primarily in arteries and arterioles.
Synonyms & antonyms
nounan antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure
Similar
Apresoline
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Contraction of hydrazinophthalazine.
Full word history & related roots →Cite this entry
APA
hydralazine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hydralazine
MLA
“hydralazine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydralazine. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “hydralazine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hydralazine.
Source: hydralazine on Wiktionary, CC BY-SA 4.0.