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Related to retarder: surface retarder, concrete retarder

re·tard 1

v. re·tard·ed, re·tard·ing, re·tards
To cause to move or proceed slowly; delay or impede.
To be delayed.
1. A slowing down or hindering of progress; a delay.
2. Music A slackening of tempo.

[Middle English retarden, from Old French retarder, from Latin retardāre : re-, re- + tardāre, to delay (from tardus, slow).]

re·tard′er n.

re·tard 2

n. Offensive Slang
1. Used as a disparaging term for a person with an intellectual disability.
2. A person considered to be foolish or socially inept.

[Short for retarded.]


1. a person or thing that retards
2. (Chemistry) a substance added to slow down the rate of a chemical change, such as one added to cement to delay its setting
References in periodicals archive ?
L'opposition et une frange de la majorite - dont sept partis (G7) ont fait dissidence mi-septembre - accusent son clan de comploter pour le maintenir en poste, quitte a retarder le scrutin.
com/research/ll8vnr/research_and) has announced the addition of the "Research and Investment Prospect of Vehicle Retarder Industry in China, 2015-2020" report to their offering.
The plywood that is likely to be the subfloor under the hardwood floor is an effective vapor retarder and all you need.
utilises LG's proprietary Film Patterned Retarder (FPR) technology and an advanced
Saleh a ajoute dans une declaration a la SUNA que certains partis politiques ont travaille a retarder le dialogue en ne pas appeler les participants au mecanisme (7 +7) dementant que le retard de (PCN) disant que le parti est desireux de inviter toutes les parties au dialogue pour atteindre cet objectif en consideration un engagement politique.
La pluie devra aussi retarder les travaux de recolte qui sont toujours en cours.
The Generation 9 TA400 is equipped with dual retarder systems, a transmission retarder and exhaust brake, giving operators increased control in loaded, downhill hauls.
Il a simplement cherche a creer des obstacles, retarder (les negociations) puis les faire capoter", a-t-il ajoute dans un communique publie par l'agence officielle KCNA.
Tokyo, Feb 15, 2013 - (JCN) - Through joint research with Professor Yasuhiro Koike of Keio University, Toyobo has developed COSMOSHINE, a polyester-based super retarder film (SRF) that uses the features of LED light sources to eliminate interference fringes (rainbow mura).
A purpose built ZF transmission includes a high capacity retarder, eight forward gears and four reverse gears.
The CF3DAT employs the film patterned retarder (FPR) display technology, enabling the use of LG's polarised 3D glasses.
5 million units in 2011, with 3D penetration in LCD TV panels of 10% (4% pattern retarder type and 6% shutter glass type).