This is the 11479th most frequent French word.
retardement
Delay or postponement.
In this context, 'retardement' refers to the act of delaying or postponing something.
Le retardement du projet a causé beaucoup de soucis.
The delay of the project caused a lot of worries.
Here, 'retardement' describes the characteristic of the reactor operating in a delayed manner.
Nous avons utilisé un réacteur avec retardement pour les expérimentations.
We used a delayed reactor for the experiments.
In this usage, 'retardement' implies a slowness or lateness in responding.