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
Projectors can be mounted to ceilings or used as mobile devices. Overhead projectors were once a common feature in both classrooms and business meetings, although it has seen a decline in use as more sophisticated computer based projectors are favored. Overhead projectors usually project images onto a screen or wall.