What does "engine-rich" mean?

Pertaining to a condition where a rocket engine is being consumed and expelled as part of the rocket exhaust, where it is not a part of normal operations.

What is a synonym for "engine-rich"?

Common synonyms include: fuel-rich, oxygen-poor, rich.

Engine-rich

adj

adj ·Rare ·Advanced level

Definitions

Adjective

1
Pertaining to a condition where a rocket engine is being consumed and expelled as part of the rocket exhaust, where it is not a part of normal operations.
2
Pertaining to a condition where there is excessive fuel in the fuel-to-air ratio, in the running of an internal combustion engine.

Synonyms

All synonyms

fuel-rich oxygen-poor rich

Antonyms

All antonyms

engine-lean engine-poor fuel-lean fuel-poor

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.