Hypertext Webster Gateway: "bulletproof"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Bullet-proof \Bul"let-proof`\, a.
Capable of resisting the force of a bullet.
{Bullet tree}. See {Bully tree}.
{Bullet wood}, the wood of the bullet tree.
From WordNet (r) 1.7 (wn)
bulletproof
adj : not penetrable by bullets
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