Definition of water maple in English:

water maple

noun

North American
  • Any of various maples typically found growing near water, especially (in early use) the ash-leafed maple (or box elder), Acer negundo, and (in later use) the red maple, A. rubrum, and the silver maple, A. saccharinum.

Origin

Early 19th century; earliest use found in Andrew Ellicott (1754–1820).