> as lemmas

tetracanthous adj. , having four spines, as a fish, etc., or thorns in groups of four, as a plant (Mayne Expos. Lexicon Med. Sci. 1860). [After scientific Latin tetracanthus (1697 or earlier) < tetra- tetra- comb. form + ancient Greek ἄκανθα thorn (see acanthus n.).]