A relatively small maple (Acer circinatum), found in western North America, resembling the Japanese maple, often grown as an ornamental.

A species of maple, Acer palmatum, with great natural variety of appearance, often with reddish leaves for most of the year and multiple trunks, widely grown as an ornamental.

(mathematical analysis) A function whose domain is a σ-algebra, whose codomain is [0,∞], and which is countably additive.

(mathematical analysis) A function whose domain is a σ-algebra, whose codomain is the set of complex numbers, and which is countably additive.

(mathematical analysis) A positive measure which, for each subset of a given measure space, assigns a value equal to the number of points in that subset.

plural of maple leaf

Moose maple, Acer spicatum.

Striped maple, Acer pensylvanicum. / Mountain maple, Acer spicatum.

moosewood (Acer pensylvanicum).

(idiomatic) between you and me