What is unseated?

Some articles on unseated:

2008 Grand National - The Race
... Tumbling Dice and Iron Man both unseated their riders when taking off too soon at the third, while Ardaghey and Fundamentalist got in too close to the fourth fence and both fell, leaving 31 runners continuing to ... Turn where Madison Du Berlais fell and hampered Philson Run, whose rider was unseated ... fell at the next and McKelvey also unseated his rider ...
2006 Grand National - Non-finishers
... Auclair Fell Innox Fell Whispered Secret Unseated Juveigneur Fell Tyneandthyneagain Fell 3rd Baron Windrush Unseated 4th Ross Comm Fell 5th Ebony Light Fell 6th ...
2001 Grand National - Non-finishers
... price Fate 20th 1 Beau Carl Llewellyn 8 11-10 12/1 Unseated rider 19th (open ditch) 12 Unsinkable Boxer Dean Gallagher 12 10-10 66/1 Refused 36 Brave Highlander Philip Hide 13 10-0 33/1 ...
2005 Grand National - Finishing Order
... Joe Tizzard 11 10-12 33/1 Fell Marcus Du Berlais Barry Cash 8 10-5 25/1 Unseated rider Ballybough Rasher Alan Dempsey 10 11-04 100/1 Refused Fence 21 Double Honour Paddy ...
Cheltenham (UK Parliament Constituency) - Members of Parliament
... Liberal son of the 5th Earl of Berkeley 1847 Sir Willoughby Jones Conservative unseated on petition 1848, June by-election Hon ... Craven Berkeley Liberal unseated on petition 1848, September by-election Grenville Berkeley Liberal 1852 Hon. 1910, December Richard Mathias Liberal unseated on petition 1911 by-election Sir James Tynte Agg-Gardner Conservative Knighted in 1928 ... by-election Sir Walter Preston Conservative 1937 by-e ...