ADVANCED FRENCH - can anyone translate Sir Winston Churchill's saying 'Terminological Inexactitude'

What Winston Churchill meant when he used the expression "Terminological Inexactitude" was that the member of parliament was actually telling a lie.This famous saying is interpreted as "inexactitude terminologique" by John Wilson in his treatise on the British Parliament for the Canadian press: "Winston Churchill avait trouvé le moyen de traiter un ministre de menteur en signalant à l'orateur que « son très honorable collègue s'était rendu coupable d'une inexactitude terminologique ».

http://www.parl.gc.ca/InfoParl/francais/issue.htm?...

However this would be alien to French culture and they would not understand the real meaning of the expression.

The equivalent expression in French would be "Il a fait une entorse à la vérité", which in its turn is so language specific that "to twist the ankle of the truth" would be meaningless in English. It is the French euphemism for " dire un mensonge".

To explain this to your class you could say:

"Winston Churchill , voulant expliquer en termes courtois au parlement qu'un autre député mentait, forgea l' euphémisme 'inexactitude de termes'- ce qui signifiait que cet homme avait fait "une entorse à la vérité" et était un menteur.

inexactitude terminologique seems to be the translation

It's used below:

www.systerofnight.net/religion/html/mystique_juive.html

I've also found ''euphemisme'', but I think Churchill's purpose was not to use this word which has less irony than terminological inexactitude