English → English - critical mass

mass of nuclear fuel necessary necessary for a chain reaction to occur (Physics)

English → Spanish - critical mass

masa crítica

masse critique (quantité minimale d'une matière qui peut faire des dégâts)

kritische Masse (Atomphysik, kleinste Menge von teilbarem Stoff, die zu einer Kettenreaktion führen kann)

kritik kütle

kritische massa (minimale hoeveelheid materiaal dat nodig is voor kettingreactie)

Noun

1. The minimum amount (of something) required to start or maintain a venture.

There is now a critical mass of successful women to take the lead.

2. The minimum mass of fissionable material that can sustain a chain reaction.