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 refers to a system in which data is pushed to a user's device rather than pulled by the user. In other words, the data transfer is initiated by the server rather than the client. Push technology, which is also called server push, can be used to send news data, stock updates, and other information from the Internet to a user's computer. It is also used to send text messages via SMS to people's cell phones.