No. The definition of a meson is that it has baryon charge 0 (in contrast to baryons with baryon charge 1 or -1), must have integer spin, and must be a bound state of the strong interaction (though the name 'meson' is also often used in other theories to denote there bosonic bound states as well).

What are the properties of meson?

meson, any member of a family of subatomic particles composed of a quark and an antiquark. Mesons are sensitive to the strong force, the fundamental interaction that binds the components of the nucleus by governing the behaviour of their constituent quarks.

What is a negative meson?

Negative pi mesons, or pions, are negatively charged particles that have a mass 273 times that of an electron. These are produced in a cyclotron or linear accelerator using 400 to 800 MeV protons that bombard a beryllium target. Pions exhibit a Bragg peak produced by elicited protons, neutrons, and α particles.