| a stew of meat, vegetables, potatoes, etc. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
positron pos·i·tron (pŏz'ĭ-trŏn')
n.
A positively charged particle of the same mass and magnititude of charge as an electron. Also called antielectron, positive electron.
| positron (pŏz'ĭ-trŏn') Pronunciation Key
The antiparticle that corresponds to an electron. Also called antielectron. |
The antiparticle for an electron; it has the same mass as an electron, but carries a positive charge.
Note: Positrons are found in collisions initiated by cosmic rays.