echinologist

== English == === Etymology === From echino- +‎ -logist. === Noun === echinologist (plural echinologists) One who studies echinology. === Further reading === Michael J. Sheehan (11 December 2020), “echinologist”, in Word Parts Dictionary: Standard and Reverse Listings of Prefixes, Suffixes, Roots and Combining Forms, 3d ed., McFarland, →ISBN, page 257