For instance, many structural engineers rely on laboratory work, and engineering tests that they hire others to perform. These additional fees can drive the cost of any project up, but even more importantly, they can derail a program that was originally on schedule.
Word forms: plural gaps. 1. countable noun. A gap is a space between two things or a hole in the middle of something solid. He pulled the thick curtains together, leaving just a narrow gap. ...the wind tearing through gaps in the window frames.
Just in case, a gap is an area on a price chart in which there were no trades. Normally this occurs between the close of the market on one day and the next day's open. Lot's of things can cause this, such as an earnings report coming out after the stock market has closed for the day.