a method of missile or rocket guidance in which the flight path is controlled by reference to the strength and direction of the earth's gravitational or magnetic fieldCompare inertial guidance
A mysterious green blob in outer space is named “Hanny’s Voorwerp.” What does that mean, and why is the blob there?
Did you catch the story about a giant green blob discovered in a remote section of the universe? An intergalactic blob in and of itself isn’t an appropriate topic for a dictionary website, even if the blob has been shown to move and change color. The reason you are reading about this on Dictionary.com is the mouthful of a name: Hanny’s Voorwerp. The second word is pronounced “FOR-verp.” While the …
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012