Merriam-Webster Collegiate Dictionary - maclaurin series

 noun  Etymology: Colin Maclaurin died 1746 Scottish mathematician  Date: 1902 a Taylor series that is expanded about the reference point zero and that takes the form f(x) = f(0) + (f?(0)/1!)x + (f?(0)/2!)x? + ... + (fn(0)/n!)x? + ... subject to the conditions holding for a Taylor's series — called also Maclaurin's series