Plural form of antapex; multiple points opposite to apexes or multiple directions from which objects appear to approach.
Regular English plural of 'antapex' formed by adding '-es' to the Latin-derived singular noun. Standard astronomical terminology.
Just like you might have multiple apex points in different contexts, antapexes gives astronomers the ability to discuss opposite directions across various reference frames and coordinate systems.
Complete word intelligence in one call. Free tier — 50 lookups/day.