projectile UK /pɹə(ʊ)ˈd͡ʒɛktʌɪl/US /pɹəˈd͡ʒɛk.taɪl/adjective 2noun 2forms 1 adjective2 •Projecting or impelling forward. •Caused or imparted by impulse or projection; impelled forward.A free and strong Projectile Motion of the Blood must occasion a florid Appearance upon the Skin in such Constitutions — 1731 noun2 •An object intended to be or having been shot from a weapon. •Any object propelled or thrown through space by the application of a force, such as strong wind. formsprojectiles