UnivSource.com - Your Most Comprehensive Source for Information on Universities
  Web UnivSource.com

You're Here : UnivSource Home > Vocabulary Builder (Beta Version)

The current version of the vocabulary builder covers over 2720 words & is useful for students preparing for academic English examinations such as SAT, GRE, GMAT, etc. Now you can also listen to the pronunciation of words. - Refer a Friend.

SocialTwist Tell-a-Friend

ballast (noun) heavy material put in a ship to enhance stability; also a similar substance put in a hot air balloon to make it heavy enough to keep it steadily afloat.

If a ship dips to a side for lack of balance, a heavy material is put on the other side to make it heavy. This material is ballast. As hot air balloons are too light, they are likely to drift. To prevent the drift and to keep it floating steadily in the air, a heavy material is placed in the balloon. This is ballast. Ballast is also the strong layer of stone laid to form the base of a road, or a railroad. This prevents the road from sinking.

  • Finally, when the crew shifted the ballast, and when the balance restored, the ship floated on an even keel.
  • The balloon floated steadily in the air after being adrift for an hour, when after being grounded, some more ballast was placed in it and flown.
  • The ballast laid under the railroad long ago had to be strengthened to support the movement of faster and heavier trains of the modern times.
Useful Links
Download Our iPhone App
Download Our Android App
Earn Your Degree Online
Earn Your Art & Design Degree Online
Earn Your Business Degree Online
Earn Your Culinary Degree Online
Earn Your Education Degree Online
Earn Your Health Care Degree Online
Earn Your Law & Justice Degree Online
Earn Your Psychology Degree Online
Earn Your Technicians Degree Online
Earn Your Technology Degree Online
US Universities by Name
US Universities by Program
US Universities by State
Canadian Universities by Name
Canadian Universities by Region

Last Modified : 11-May 2009
Best viewed with 1024 x 768 resolution & Microsoft Internet Explorer