Definition of "generator"

One who, or that which, generates, begets, causes, or produces.

1. (chemistry) An apparatus in which vapour or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort etc.  examples

2. (music) The principal sound or sounds by which others are produced; the fundamental note or root of the common chord; -- see also generating tone.  examples

3. (mathematics) An element of a group that is used in the presentation of the group: one of the elements from which the others can be inferred with the given relators.  examples

4. (geometry) One of the lines of a ruled surface; more generally, an element of some family of linear spaces.  examples

5. (programming) A subordinate piece of code which, given some initial parameters, will generate multiple output values on request.  quotations  examples

   Quotations

   • When you come across something that looks like a listcomp but is surrounded by parentheses, you're looking at a generator: […]

     2016, Paul Barry, Head First Python: A Brain-Friendly Guide, O'Reilly, page 508

A piece of apparatus, equipment, etc, to convert or change energy from one form to another.

1. Especially, a machine that converts mechanical energy into electrical energy.  examples