from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The act or ceremony of breaking ground to begin a construction project.
- adj. Of, relating to, or being a ceremony of breaking ground.
- adj. Characterized by originality and innovation: a groundbreaking technology.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Innovative; new, different; doing something that has never been done before.
- n. A ceremony to mark the beginning of construction.
- n. The point at which construction begins.
from the GNU version of the Collaborative International Dictionary of English
- n. The ceremonial breaking of the ground to formally begin a construction project. It is sometimes carried out by an official who digs the first spadeful of dirt from the ground, to begin the preparatory excavation work.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. being or producing something like nothing done or experienced or created before
- n. the ceremonial breaking of the ground to formally begin a construction project
From ground + break + -ing, reminiscent of the practice of breaking ground at the beginning of a new building or construction. (Wiktionary)