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a concept, heretics refer to it as a "function", in mathematics. the meaning of life and the universe and all. zeta will show the limits of the human mind. god.
zeta(2)= sum of inverses of squares = pi^2/6.
by ianzinho September 16, 2006
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Zeta is slang for "alien".
Bob Nickles: I don't believe in Zetas.

Johnny Doogoo: Just for saying that, the Zetas are going to abduct you.
by Kight of Cyndonia July 03, 2010
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1) The greatest Gundam series ever

2) Zeta Gundam, a prototype Gundam capable of transforming into the Waverider to re-enter and fly in the atmosphere
1) While the original Gundam, and other other series like SEED and 08th MS Team were great, Zeta Gundam takes the cake.

2) That Zeta Gundam sure is powerful.
by RHS Student October 11, 2004
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A 'Zeta' is slang for:

1.A Babe

2.A Honey

3.A Sexy Chick

Basically any female who is 'Fine'

4.The name of a dog who is both faithful and loyal but has to make room for a 'Hot Female' i.e.'Get off the settee Zeta'
'Wow , this place is full of ZETAs'.

'Is this a ZETA walking towards us'.

'She's one hell of a ZETA'.

'Get off the settee ZETA'.

'Pack your bags Zeta,your off on holiday'.

by Atez November 20, 2006
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An imaginery grey alien from Zeta Reticuli whose existence is only claimed by a group of delusioned people.
See also Zetan and Zeta Reticulian.
Zetas are going to screw our earth!
by jaelee11 February 10, 2008
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'A Zeta' is slang for a 'Sexy Babe','a Honey','Hot Chick' basically any 'female' who is 'Fine' etc
Zeta is the name of a dog and she is a loyal and faithfull conpanion.But once a 'Sexy babe'appears its time to make room and 'Get off the settee Zeta' and the 'Hotter' they are the more descriptive it gets like 'Off to the park Zeta' or 'pack your bags Zeta,your off on holiday' and so on,just ellaborate.
Another example: walking down the road with your mate and two girls approaching and you say to your mate 'looks like a couple of Zetas' or say 'off the settee Zeta'
Or you walk into a crowded room and say to your mate'the place is full of Zetas'
by Atez November 20, 2006
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