Difference between Lag and Retardation

Lag

Part of speech: verb

Definition: to not keep up (the pace), to fall behind to cover (for example, pipes) with felt strips or similar material The action in which a computer or server slows or halts in response to a poor connection

Part of speech: noun

Definition: a gap, a delay; an interval created by something not keeping up; latency. a prisoner, a criminal. bad connection, loss of connection, causing a delay

Part of speech: adjective

Definition: late

Example sentence: I seem to spend a minimum of eight hours a day in transit of some sort or another... that's eight hours of your life gone. People always ask if I suffer from jet lag, but it's kinda become really normal for me... Although the jet lag does become a factor and you're pretty much always tired.

Retardation

Part of speech: noun

Definition: The act of retarding or delaying; hindrance.The extent to which anything is retarded; the result of any retarding or delay; mental, social, or physical slowness.That which retards; an obstacle; an obstruction.