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.
push (Noun). A crowd or throng or people. push (Verb). To apply a force to (an object) such that it moves away from the person or thing applying the force. In his anger he pushed me against the wall and threatened me.