deceleration

See also: décélération

English

Etymology

de- +‎ (ac)celeration

Pronunciation

• (UK) IPA^(key): /diːsɛləˈɹeɪʃən/

  • Audio (Southern England)

    (file)

• (US) IPA^(key): /dɪˌsɛləˈɹeɪʃən/
• Rhymes: -eɪʃən

Noun

deceleration (countable and uncountable, plural decelerations)

1. (uncountable) The act or process of decelerating.

   The rocket is now in deceleration.

   • 1960 February, R. C. Riley, “The London-Birmingham services - Past, Present and Future”, in Trains Illustrated, page 98:

     Comparing both Regions' 1959 services against those of 1939 an appreciable deceleration is evident. This was due to increased loadings, even though more trains were being run, while on the W.R. in particular the increased volume of freight traffic over the line shared the blame.

2. (countable) The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity), an acceleration having a negative numerical value.

   The brakes produce a deceleration of 10 metres per second.

Antonyms

• (antonym(s) of "act or process of decelerating"): acceleration

Related terms

• decelerate

Translations

the act or process of decelerating

• Arabic: تَباطُؤ (tabāṭuʔ)
• Chinese:

  Mandarin: 減速／减速 (zh) (jiǎnsù)

• Czech: zpomalení n
• Dutch: vertraging (nl) f
• Finnish: hidastaminen (fi), hidastus (fi)
• French: décélération (fr) f
• German: Verlangsamung f
• Greek: επιβράδυνση (el) f (epivrádynsi)
• Hungarian: lassulás (hu)
• Indonesian: perlambatan
• Italian: decelerazione (it) f
• Japanese: 減速 (ja) (げんそく, gensoku)
• Persian: واشتاب (vâšetâb)
• Polish: zwalnianie (pl) n
• Portuguese: desaceleração f
• Russian: торможе́ние (ru) f (tormožénije), замедле́ние (ru) n (zamedlénije)
• Serbo-Croatian:

  Cyrillic: децелера́ција f

  Roman: decelerácija f

• Spanish: desaceleración (es)
• Tagalog: hidarasig
• Ukrainian: спові́льнення n (spovílʹnennja)

amount by which a speed or velocity decreases

• Finnish: hidastuvuus
• Greek: επιβράδυνση (el) f (epivrádynsi)
• Indonesian: deselerasi (id), perlambatan
• Malay: nyahpecutan (ms)
• Maori: whakapōturitanga
• Portuguese: desaceleração f
• Serbo-Croatian:

  Cyrillic: децелера́ција f

  Roman: decelerácija f

• Tagalog: hidarasig