|
|
| sig·ma hy·per·on (plural sig·ma hy·per·ons) or sig·ma par·ti·cle (plural sig·ma par·ti·cles) |
noun |
|
| Definition: |
| |
elementary particle: an unstable elementary particle of the baryon group with a positive, negative, or neutral electric charge and mass of 2,328 to 2,343 times that of an electron
|
|
