Word.ws English Dictionary

spool down

spool down verb: to decrease in rotational speed, producing a decrease in thrust.

Verb

spool down (third-person singular simple present spools down, present participle spooling down, simple past and past participle spooled down)

  1. To decrease in rotational speed, producing a decrease in thrust.
    • All ground personnel MUST be made aware that big jet engines take a considerable time to spool down. We don't want any more mechanics getting sucked in or catapulted across the apron.

Antonyms of spool down

Forms of spool down

third-person singular presentspools down
present participlespooling down
past participlespooled down
pastspooled down

Questions about spool down

What does spool down mean?
Spool down means to decrease in rotational speed, producing a decrease in thrust.
What part of speech is spool down?
Spool down is a verb.
What is the past tense of spool down?
The past tense of spool down is spooled down.

Words near spool down in the dictionary

  1. spool
  2. spool brush
  3. spool brushes
  4. spool cannon
  5. spool cannons
  6. spool down
  7. spool out
  8. spool up
  9. spool-and-line
  10. spoolable
  11. spooldown

Source and license

Adapted from Wiktionary: spool down (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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