The word "tetrapterus" is spelled using the IPA phonetic transcription as /tɛtræptərəs/. The first syllable "tetra" refers to the number four and the second part "pterus" means "winged". So, "tetrapterus" literally means "four wings". It is a term used in zoology to describe a fish that has four fins or pairs of fins like the gurnards. The correct spelling of this word can be a bit tricky due to the different combinations of vowels and consonants used in the word.
In geol., a four-finned fossil creature; a genus of fossil fishes peculiar to the chalk formation.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word tetrapterus is derived from the combination of two Greek roots: tetra, meaning four, and pteron, meaning wing. Hence, tetrapterus can be translated to mean four-winged.