different between retarder vs retardation

English

Etymology

retard +? -er

Noun

retarder (plural retarders)

1. Something which retards or slows.

   Synonyms: bottleneck, inhibitor, retardant, limiter

   Antonyms: accelerant, promoter, quickener

3. (mechanical engineering) A device for slowing down large trucks, lorries, buses, shunted railway wagons.
4. (baking) A refrigerator used to slow down proofing of yeast when making dough.

Further reading

• Retarder (chemistry) on Wikipedia.Wikipedia
• Retarder (mechanical engineering) on Wikipedia.Wikipedia
• Retarder (railroad) on Wikipedia.Wikipedia

Anagrams

• retarred

French

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Pronunciation

• IPA^(key): /??.ta?.de/
• Homophones: retardai, retardé, retardée, retardées, retardés, retardez

Verb

retarder

1. to retard, slow down

2. to postpone, put back

Conjugation

Derived terms

• retardé

Further reading

• “retarder” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Latin

Verb

retarder

1. first-person singular present passive subjunctive of retard?

Norwegian Bokmål

Pronunciation

• IPA^(key): /r??t??r?r/
• Rhymes: -??r?r
• Hyphenation: re?tard?er

Noun

retarder m

1. indefinite plural of retard

Anagrams

• traderer

Old French

Etymology

Borrowed from Latin retard?.

Verb

retarder

1. (transitive) to retard; to delay; to make late
   • li qel paiement par la dite encheson ad esté uncore retardez, Bretigny 28.18

     The aforementioned payment by the same occasion has again been delayed

Conjugation

This verb conjugates as a first-group verb ending in -er. The forms that would normally end in *-d, *-ds, *-dt are modified to t, z, t. Old French conjugation varies significantly by date and by region. The following conjugation should be treated as a guide.

Descendants

• ? English: retard
• French: retarder
• Norman: r'tèrgi

English

Etymology

retard +? -ation

Noun

retardation (countable and uncountable, plural retardations)

1. The act of retarding or delaying; hindrance.
   1. (acoustics) The distance by which one wave is behind another.
   2. (music) The act of diminishing the rate of speed.
   3. (telegraphy) A decrease in the speed of telegraph signalling.
2. The extent to which anything is retarded; the result of any retarding or delay; mental, social, or physical slowness.
3. (colloquial, derogatory, offensive) Extreme stupidity.
4. That which retards; an obstacle; an obstruction.
5. (physics) Deceleration; reduction in the magnitude of velocity.
6. (music) A suspension which resolves upwards.

Related terms

References

• retardation in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• retardation in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.