concho-, conch-, conchi- +

A form of osteomyelitis occurring in pearl workers: Conchiolinosteomyelitis is a historical bone disease and caused inflammation of the bone, and bone marro in the workers.

1. A fossil shell: Sam had a nice collection of conchites which were little stones very much like shellsl,
2. A form of calcium carbonate, identical with aragonite: Conchite is found in the shells of mollusks.

Concerning something that contains shells: Mr. Smart showed his students some conchitic limestone and a piece of conchitic marble which are sedimentary rocks.

An inflammation of a concha or external ear: Jill got her ears pierced and after a while they became infected, and the doctor diagnosed this infection as being a condition of conchitis which could be easily treated.

A plane quartic curve: A conchoid consists of two separate branches on either side of an asymptotic to a central straight line.

Descriptive of fractured surfaces in rocks and minerals that are concave or convex and shaped like shells: Such conchoidal forms can be seen on mussel shells.

A conchoidal surface is shaped like a bivalve shell with smooth ridges and depressions, such as a conchoidal fracture.

A conchoidal surface is characterized by smooth, shell-like convexities and concavities, as on fractured obsidian and shaped like a shell; having alternate convexities and concavities on the surface.

A conchoidal mineral or rock surface is characterized by smooth, shell-like curves.. Obsidian and quartz often have conchoidal fractures.

Regarding how something is shaped in concave and convex surfaces: Some rocks and minerals that have been conchoidally fractured have smooth surfaces.

1. Pertaining to, or connected with, conchology: Whenever Greg was at the seashore he collected conchological shells, mostly those of mollusks.
2. A reference to a branch of zoology that deals with the study of mollusks and shells: Since Sam grew up next to the ocean, he loved the marine life an decided to do conchological research after completing his studies.

1. A collector and student of mollusc shells: Joe was a conchologist who was a specialist in the branch of zoology that deals with the study of mollusks and shells.

Conchologists (practitioners of conchology) may study animal shells to gain an understanding of the diverse and complex taxonomy of mollusks, or simply appreciate them for their aesthetic value.

Conchologists deal mainly with gastropods (snails), bivalves, Polyplacophora (chitons) and Scaphopoda (tusk shells).
2. A carrier-shell mollusk: A conchologist is the name of a particular type of mollusk that has a habit of attaching other shells, stones, etc., to its own shell.

To collect shells or to be involved with the study of shells: Tommy liked to conchologize whenever the family was at the seashore, and took his collection to his class at school to show the teacher and his friends.

1. The science or study of shells and shell-fish: Conchology is the branch of zoology dealing with sea shells and the animals that inhabit them.
2. The hobby of shell collecting: Conchology, or, the "ancestor" or precursor of conchology, goes as far back as there have been people and beaches.

Someone walking on a beach picked up a shell for its beauty and then very likely would go out the next day to look for more specimens. This is still going on around the world wherever shells can still be found.

Fortune telling with sea shells: When the family was at the sea shore, their children loved to play conchomancy by choosing the nicest sea shells and telling each other if they were going to marry and have children in the future.

An instrument for measuring shells, or the angle of their spires: A conchometer is a scientific implement to assess snail shells and mussels and mollusk shells

The art of measuring shells or their curves; conchyliometry: Conchometry is the process of assessing the dimensions, angles, and mathematical curves of shells, specifically those of mollusks.

A speculum for examining the walls of the nasal cavity: The otorhinolaryngologist used a conchoscope to examine the interior of Mrs. Lawson's nose.

A conchoscope is a tubular speculum incorporating a mirror which was once used for median rhinoscopy.