The phrase "slight deviation" means a small change from what is expected or usual.
Sentences with «slight deviation»
The beauty of fuel - injection management systems is that they can compensate for slight deviations in operation via feedback. (mechanics.stackexchange.com)
Even slight deviations could end in a different score. (privacyrights.org)
The outfits seem to only be palette swaps with slight deviations in - between them. (thatvideogameblog.com)