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 back. v. 1. To move or force something backward by applying pressure: Push that glass back from the edge of the table. The police managed to push back the protestors by using tear gas. 2. To delay something until a future time; postpone something: We should push back the deadline so that we have more time to work on the project.