Can anyone please explain an 'antimatter'??

Question

Can anyone please explain an 'antimatter'??

Answer 1

Stuff that has opposite charge as regular matter.

http://en.wikipedia.org/wiki/Antimatter

Answer 2

Think of matter: Now anti-matter is the opposite.

For Example:

Electron-Negative charge

Positron(the Electron anti-matter)-Positive Charge

Answer 3

All of the fundamental particles found within particle physics have an antimatter equivalent particle. Antimatter particles have the same mass as their particle equivalent but the opposite charge. For example, the antimatter particle of the electron (charge e-) is the positron (charge e+). Similarly, the proton with charge e+ has an antimatter equivalent called the anti-proton with a charge of e-. In fact, all of the leptons (electron type particles) have antimatter equivalents and all of the quarks (top, bottom, charm, strange, up, and down) have antimatter equivalents. If an antimatter particle collides with its matter equivalent, the two cancel each other out in a flash of high energy that then decays to a shower of particles. It was the collisions of electrons and positrons that was used in the CERN LEP accelerator before the LHC replaced it.