məˈklȯrən(z)- noun
or maclaurin series
Usage: usually capitalized M
Etymology: after Colin Maclaurin died 1746 Scottish mathematician
: a Taylor's series of the form f(x) = f(0) + f ′ (0)/1! x + f ″ (0)/2! x ² + ... + f [n] (0)/n! x ⁿ + ... in which the expansion is about the reference point zero