Vitamin A deficiency: Related Medical Conditions. To research the causes of Vitamin A deficiency, consider researching the causes of these these diseases that may be similar, or associated with Vitamin A deficiency:
Definition of push button. : a small button or knob that when pushed operates something especially by closing an electric circuit.
v. pushed, pushÂ·ing, pushÂ·es. v.tr. 1. a. To apply pressure against (something), especially for the purpose of moving it: pushed the door but couldn't budge it. b. To move (something) by exerting force against it; thrust or shove: pushed the crate aside.