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.
How is Normally Open Push Button (electronics) abbreviated? NOPB stands for Normally Open Push Button (electronics). NOPB is defined as Normally Open Push Button (electronics) very rarely.