pro ‧ jec ‧ tile /prəˈdʒektaɪl $ -tl/ BrE AmE noun [countable] formal
1 . an object that is thrown at someone or is fired from a gun or other weapon, such as a bullet, stone, or ↑ shell
2 . projectile vomiting informal when someone ↑ vomit s with a lot of force, especially because they have drunk too much alcohol – used humorously