Fr.: éruption volcanique
The explosive ejection of superheated matter from a → volcano.
Fr.: groupe de travail
A group of people working together to achieve a stated goal.
yellow supergiant (YSG)
abarqul-e zard (#)
Fr.: supergéante jaune
A supergiant star of type F and G whose effective temperature is between 4800 and 7500 K. Yellow supergiants are extremely rare, because they represent a very short-lived phase, typically a few tens of thousands of year, in the evolution of → massive stars.
Fr.: suppression de zéro
The removal of non-significant zeroes from a number. For example, replacing 531.2300 by 531.23.