/ prəˈdʒektaɪl; NAmE -tl/ noun ( formal or technical )
1.
an object, such as a bullet, that is fired from a gun or other weapon
2.
any object that is thrown as a weapon
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WORD ORIGIN
mid 17th cent.: modern Latin , from project- thrown forth, from the verb proicere throw forth, from pro- forth + jacere to throw.