virtual particle

Noun

 * 1)  a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum

Translations

 * Arabic: جُسَيْم اِفْتِرَاضِيّ
 * Dutch: virtueel deeltje
 * Finnish: virtuaalihiukkanen
 * French:
 * German: virtuelles Teilchen
 * Hebrew: חלקיק וירטואלי
 * Italian: particella virtuale
 * Polish: cząstka wirtualna
 * Spanish: partícula virtual