- ballon d'essai,
- balloon angioplasty
Origin of ballon
Examples from the Web for ballon
“Taking 20 pages of a book not released yet is less likely to be deemed fair use,” Ballon said.
In the hinder part of this ballon, a little above the surface of the water, a small hole must be bored.Elements of the Theory and Practice of Chymistry, 5th ed.|Pierre Joseph Macquer
That was a ballon d'essai, as they call it, and they think it was a very happy one.Royal Highness|Thomas Mann
And in the early morning she had sent her note to Kitty—a ballon d'essai, despatched in a horror of great fear.The Marriage of William Ashe|Mrs. Humphry Ward
"smoothness in dancing, lightness of step," 1830, from French ballon, literally "balloon" (see balloon (n.)).