The term histrionic here is being used as a synonym for theatrical or dramatic.
Have we provided a synonym for a description or definition?
Something that happens or occurs may be called an incident; in most cases the word is simply a synonym for occurrence.
‘shut’ is a synonym of ‘close’
The word text is frequently employed as a synonym for a term like ‘written document’.
In brief, ‘primitive’ became a synonym of the word ‘different’, an umbrella definition for all things that were alien to the cultural commentator.
‘the East’ was a synonym for the Soviet empire
In its most common meaning, the term idea is used as a synonym for theme, melody, phrase or motive.
Thus, we use the name P. ultima as the senior synonym of P. praetriangularis.
Molecular studies support the monophyly of all these taxa as Ecdysozoa, so the term Spiralia is sometimes used as a synonym for the non-molting protostomes, Lophotrochozoa.