tomo-,-tom, -toma, -tomic, -tomize, -tome, -tomical, -tomically, -tomist, -tomous, -tomy; -otomy

(Greek: cut, incision; section; more often used as a suffix)

endopyelotomy
Surgery to correct a stenosed (constricted or narrowed) ureteropelvic (tube moving the urine from a kidney with each kidney having one ureter to the bladder located in the curved group of bones at the level of the hips) where they are joined together by cutting from inside with an instrument that is inserted through an endoscope.
entomology (noun) (no plural)
1. The branch of zoology that deals with the study of insects: The biology teacher brought in a book about entomology so the students could identify the bug that they found in their classroom.
2. Etymology: from French entomologie (1764), coined from Greek entomon, "insect" + logia, "study of".

Entomon is the neuter form of entomos, "having a notch or cut (at the waist)"; so called by Aristotle in reference to the segmented division of insect bodies.

Scientists who study insects (there are close to a million that can be studied) are called entomologists. Then why aren't they called "insectologists"? Well, they are.

The word insect comes from the Latin word insectum, meaning "cut up" or "divided into segments".

The plural of insectum, namely insecta, is used by scientists as the name of the taxonomic class that insects belong to.

This Latin word was created in order to translate the Greek word for "insect", which is entomon and literally means "cut up" or "divided into segments", and it is the source of the word entomology.

The Greeks coined this term for insects because of the division of insect bodies into three segments, now called the head, thorax, and abdomen.

—Based on information from a presentation in The American Heritage Science Dictionary, Houghton Mifflin Company; Boston; 2005.
The science that deals with insects and their environments.
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episiotomy
epitome (i PIT uh mee) (s) (noun), epitomes, epitomai (pl)
1. A condensation, summary, digest, synopsis, brief, abstract, or syllabus: The newspaper reporter wrote an epitome of the destructions that have been caused by the hurricanes in various countries.
2. The embodiment or summation of certain qualities: Henry is the epitome of strength because he works out at the fitness studio as often as possible.
3. A person or thing which is representative of or typical of the characteristics or general quality of a whole class or group: Ted's car was once the epitome of low cost transportation.
4. Etymology: from Greek epitome, "abridgement"; from Latin epitome, "to cut short, to cut down, or to cut into".
A concise summary.
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gonotome
herniotomy
1. A surgical operation for the repair of hernia; also called celotomy and kelotomy.
2. An operation for the relief of irreducible hernia, by cutting through the neck of the sac.
labiotome
leucotomy
leukotomy
lobotomy
The surgical severance of nerve fibers connecting the frontal lobes to the thalamus for the relief of some mental disorders; also called leukotomy.
mastotomy
Incision into the breast in order to drain a cyst or to obtain tissue for microscopic study.
microtome
microtomy
myotome
necrotomy
1. An operation for the removal of a necrosed (dead) portion of bone.
2. The dissection of a cadaver.

Related cutting-word units: cast-; castrat-; -cise, -cide; -ectomy; mutil-; put-; sec-, seg-; temno-; trunc-.