1. Plural of hydrazine; organic or inorganic compounds containing the hydrazine group (N₂H₄ or derivatives), used in rocket fuel, pesticides, and chemical synthesis.
Usage: technical; chemistry

Examples

• Hydrazines are commonly used as propellants in spacecraft.
• The laboratory synthesized several hydrazines for the pharmaceutical study.
• Industrial hydrazines must be handled with care due to their toxic properties.
• Researchers tested different hydrazines to improve fuel efficiency.
• The chemical plant produces hydrazines for use in water treatment.