Main Entry: mac·ro·struc·ture

Pronunciation: \ˈma-krō-ˌstrək-chər\

Function: noun

Date: circa 1899

: the structure (as of metal, a body part, or the soil) revealed by visual examination with little or no magnification

— mac·ro·struc·tur·al \ˌma-krō-ˈstrək-chə-rəl, -ˈstrək-shə-rəl\ adjective