-ist

(Greek > Latin: a suffix; one who believes in; one who is engaged in; someone who does something)

karyologist, caryologist
1. Someone who studies cell nuclei; especially, with reference to chromosomes.
2. A specialist who researches the branch of cytology that concentrates on the study of the cell nucleus; especially, the structures and functions of the chromosomes
kinesipathist
A non-medical person who treats disease by various kinds of movements.
kineticist
kinophilist
A collector of narrow-gauge cinemas.
klaxonophilist
A collector of motor horns.
labalophilist
A collector of bottle labels.
labeorphilist
One who collects or the collecting of beer bottle labels.
lachanopolist
A green grocer.
laclabophilist
A collector of cheese labels.
lalophomiatrist
A speech pathologist (a specialist who evaluates and treats people with communication and swallowing problems).
lapidarist (LAP uh der" ist, luh PID uhr ist) (s) (noun), lapidarists (pl)
An expert who deals with pieces of mineral crystal which, when cut and polished, is used to make jewelry or other adornments: A lapidarist uses precious stones and his or her skills to cut or to carve them into valuable rings, bracelets, and necklaces.
larcenist (s) (noun), larcenists (pl)
Those who steal from other people: James and Jim, who were larcenists, broke into a department store and stole several valuable items; including, jewelry and computers.
lariatophilist
A collector of cowboy gear.
laryngologist
Someone who specializes in the science of the anatomy, physiology, and diseases of the larynx.
laryngoscopist
A specialist in laryngoscopy.