conditioning,
From The Oxford Companion to Beer
the achievement, post-fermentation, of a particular beer’s correct character of maturation and carbonation. As such, “conditioning” is a catchall term that may include lagering, relatively warm aging in a tank, refermentation in the bottle, or refermentation in a cask. The word “condition” is often used to describe the level and texture of carbonation, particularly in the UK.
This definition is from The Oxford Companion to Beer, edited by Garrett Oliver. © Oxford University Press 2012.