in research of this word, I don't believe there is an exact word. But I'm looking for a word with the suffix "-cide" at the end. If we go by other words in a similar formate like genocide (Geno being greek for race) then it's possible it would be: eídoscide (Eidos being greek for species). The correct term has to cover all of any one species, but only the one species. (so no, omnicide or mundicide)
Learn English – the correct term for the killing of an entire species
single-word-requeststerminology
Best Answer
Speciocide is "the elimination of an entire species" [Collins English Dictionary].