It can also lead to diarrhea, loss of appetite, and a risk for infections.â. Hair loss and poor wound healing also can be signs of a zinc deficiency, adds Rachel K. Johnson, PhD, MPH, RD, associate provost and a professor of nutrition at the University of Vermont in Burlington.
projector definition: a person or thing that projects; specif., a machine for throwing an image on a screen, as from a transparent slide or film (noun)... Definitions
Overhead Projector. The overhead projector works with transmissive, or transparent, objects, such as sheets of plastic film, on which you print or write messages, artwork or other source material. A bright light shines through the transparent substrate and onto a mirror, which reflects the image through a lens and onto a flat surface.