"We choose it so we don't get the boring jokes time and time again," she said. "Trust me, I have heard them all - and I could probably add a few myself."
She said there had always been two ways to pronounce the planet and the Latin version spared staff the ridicule and helped educate children and teachers.
Association of Science Educators president Steven Sexton said either version of the planet's name was correct. "It might be the fact that just to get away from that play on the spelling and the pronunciation more people might be trying to go for a less giggly pronunciation of Uranus."
He said the classic, common pronunciation of the planet's name was generally regarded as "just nuts".
Within academic circles, the planet was usually referred to by its Latin name with a short "a".
Uranus is named after the Greek god of the heavens, Ouranos.