Definition

Relating to a type of rocket fuel that ignites automatically when the fuel and oxidizer come into contact with each other, without needing a spark or other ignition source.

Example

The spacecraft used hypergolic fuel for its engines, allowing for quick and reliable ignition.

Conversation

Did you know that some rockets use hypergolic fuels?

Really? I didn't know that! How do they work?

They ignite spontaneously when the fuel and oxidizer touch each other.

That sounds fascinating! I wonder if they are more efficient than others.

Synonyms & Antonyms

Root Explanation

Hypergolic → It is formed from "hyper-" (meaning over or excessive) and "gōl" (from Greek "gōlos", meaning to work or to react). The term describes a type of propellant that ignites spontaneously upon contact, thus working or reacting excessively without the need for an external ignition source.

Memory Tip

Think of 'hyper-' meaning excessive and 'gōl' relating to working or reacting — this helps you remember that hypergolic refers to a reaction that ignites on contact.

Visually Confused Words