Christmas tree

At the very moment he cried out, David realised that what he had run into was only the Christmas tree. Disgusted with himself at such cowardice, he spat a needle from his mouth, stepped back from the tree and listened. There were no sounds of any movement upstairs: no shouts, no sleepy grumbles, only a gentle tinkle from the decorations as the tree had recovered from the collision.

The modern infantryman is a Christmas tree of weaponry, with grenades and extra ammunition hanging from all parts of his upper body.

Then, after a smoky-burnout to warm up the tires, you're lined up next to another competitor and the Christmas tree lights blink down... yellow, yellow, yellow, green!

Wellheads, which support downhole tubing, casing, and other components, are connected at the top of wells to Christmas trees, which control production rates and fluid flows out of the well and may also direct fluids and equipment into the well

These are great for really developing that Christmas tree in your lower back and the proper arch at the top is key in that regard.

One of the most important color discriminations involved in the operation of a submarine is that of reading the "Christmas tree," a panel of 30 to 60 small jewel-shaped lights, used to indicate whether hull openings, such as hatches and vents, are sealed or not.