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.
(computer science) one of a set of small on-off switches mounted in computer hardware; used in place of jumpers to configure the machine for a user bell, buzzer, doorbell a push button at an outer door that gives a ringing or buzzing signal when pushed