Dictionary
heav•y-du•ty
Pronunciation: (hev'ē-dOO'tē, -dyOO'-), [key]—
adj.
1. providing an unusual amount of power, durability, etc.:
heavy-duty machinery; heavy-duty shoes.
2. very important, impressive, or serious:
heavy-duty involvement; heavy-duty questions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.