equater / equator are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
equater: NA
equator: (noun) an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles. (noun) a circle dividing a sphere or other surface into two usually equal and symmetrical parts.
equater: NA
equator: ih·k·w·EY·t·er
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)