Pronunciation: (mak'rō-struk"chur), [key]
1. the gross structure of a metal, as made visible to the naked eye by deep etching.
2. an overall organizational scheme, as of a complex piece of writing.
3. any overall structure, as a gross anatomical part.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.