grassy death camas: plant of western North America to Mexico; poisonous especially to grazing animals
death camas: any of various plants of the genus Zigadenus having glaucous leaves and terminal racemes of mostly white flowers; all are poisonous
gun pendulum: a ballistic pendulum consisting of a suspended gun; the velocity of a projectile in the bore of a gun can be measured by the recoil when the gun is discharged