propulsor

propellant, thruster

noun proh-pool-SOHR Rare

Origin: from Latin propulsare (to drive forward)

Also means

booster

Usage Note

Propulsor refers to a device or substance that drives something forward — a rocket propellant (propulsor de cohete), a ship's propeller, or a jet engine component. The adjective form propulsor/a can also modify a noun: fuerza propulsora (driving force). Do not confuse with impulsor (initiator, driving force in an abstract sense).

Examples

"El propulsor del cohete falló en el despegue."

Natural Translation

The rocket's thruster failed at launch.

Related Words

Explore Spanish by topic

SpanishNow

How to Tell Time in Spanish: A Beginner's Guide

Tell time in Spanish with one formula: es la una vs son las, y and menos for minutes, plus de la mañana, en punto, and 24-hour station times.

June 9, 2026 5 min read

SpanishNow

Te Quiero vs Te Amo: Saying "I Love You" in Spanish

Te quiero vs te amo, explained: te quiero is the warm, safe everyday I love you; te amo is deeper and more romantic. A relationship-by-relationship map.

June 3, 2026 6 min read

SpanishNow

Spanish Accent Marks: 3 Rules for Every Word

A Spanish word needs an accent mark in just three cases: it breaks the default stress, it's a homophone, or a weak vowel splits off. Here are all three rules.

June 3, 2026 6 min read

SpanishNow

How to Memorize Spanish Vocabulary Fast (That Sticks)

Memorize Spanish vocabulary fast with a 15-minute daily loop: spaced repetition, frequency-first words, and example-sentence cards that actually stick.

June 9, 2026 6 min read