Scialytic

Word no.13, Scialytic, dispelling or dispersing shadow.

Four strip lights arranged in a square directly above the operating table... best lights I've ever seen in a veterinary operating theatre, so I thought it would do admirably for this word.
Then, just in case, before posting the image, I actually looked the word up and discovered that, in fact, it usually refers to a particular type of lamp mostly used in operating theatres and dentists' surgeries and suchlike!
So technically, these are not scialytic lamps. But the arrangement makes them as scialytic as anything I've ever operated under. And I had to come up with a surgery image sooner or later, if these blips were ever going to be even remotely relevant to my life :0)

P.S. Photo taken with a 10.5mm fisheye lens. Veterinary operating theatres tend to be quite small.