definition of
[regress]

[1] #1 regress n. [reasoning backward] the reasoning involved when you assume the conclusion is true and reason backward to the evidence. wn

[2] #2 regress v. go back to a statistical means. wn

[3] #3 regress n. [regression, reversion, retrogression, retroversion] returning to a former state. wn

[4] #4 regress v. [revert, return, retrovert, turn back] go back to a previous state; "We reverted to the old rules". wn

[5] #5 regress v. [retrograde, retrogress] get worse or fall back to a previous condition. wn