Definition of "quasi-periodic" []

• Noting a function such that, when the variable is increased by a certain fixed amount, it has its value multiplied by a fixed function: thus, l is quasi-periodic, because lx + 1 = l. l.

The Century Dictionary (Public Domain)

• "Known as a quasi-periodic oscillation, or QPO, the blob disappeared shortly before the steady jets turned off."
• "Mass accreted onto the white dwarf can result in flickering and quasi-periodic oscillations."
• "The fact that an N-dimensional model is the most economic way to describe some aspect of reality (such as quasi-periodic crystals) doesn't imply that space is N-dimensional."